Blown Head Gasket Repair Procedure

So you’ve had the misfortune of getting a blown head gasket on your car or truck.  Once you have properly diagnosed the problem, either through a trusted mechanic, seeing an external leak or testing for an internal leak, either chemically or through a pressure test, your next step is to find the most cost effective and permanent way to fix your blown head gasket.

00209_PNGFixing a blown head gasket on your vehicle can be as easy as going down to your local auto parts store, purchasing a bottle of BlueDevil Pour-N-Go Head Gasket Sealer, and following the directions on the bottle.  BlueDevil Pour-N-Go is an easy to use, do-it-yourself head gasket repair product.   With the vehicle cold, remove the radiator cap and start the engine.  While the vehicle is running with the heat on High, take 1 full minute to pour the entire bottle of BlueDevil Pour-N-Go into your radiator and then replace the radiator cap.  Let the vehicle idle for 50 minutes while watching the temperature gauge to make sure it stays in the normal range.  After 50 minutes, top off the cooling system with the appropriate mixture of anti-freeze and water.  BlueDevil Pour-N-Go is specifically designed to stay in your cooling system as an inert liquid until it reaches the leak point.  The temperature differential at the leak will cause BlueDevil Pour-N-Go to form a chemical weld that will form a permanent seal.  BlueDevil Pour-N-Go is guaranteed to seal your head gasket leak.

If you’re skeptical, read some of our product reviews from real customers who have had success with our products!  If it sounds a lot easier than you thought it would be, head to your local auto parts store and pick up a bottle of Pour-N-Go to see for yourself.  Once you’ve fixed your head gasket leak, say thanks by leaving us a product review!

If you were take the alternative route and actually replace your head gasket you have two options.  You can always have a mechanic replace the head gasket, but since it is a complicated job with a lot of labor involved, you will likely end up having to pay a significant repair bill. Due to the nature of the job, a skilled experienced mechanic will likely charge a high hourly rate.  The other option is to try and do the job yourself.

Blown Head Gasket RepairBefore you start tearing into the engine of your vehicle, consider the costs and benefits of your decision.  Likely replacing your own head gasket will be a long job, as in hours, days, or maybe even weeks if you have to wait for parts or tools to be ordered.  Also, consider the cost of buying the specialty tools for the job.  Overhead cam engines will require removing the timing belt or timing chain, which often can require removing the crank shaft pulley. This may take an extremely powerful impact wrench, a long breaker bar or even a large chain wrench.  Depending on how old your vehicle is, you may also need a timing light to re-time the engine upon reassembly and you will definitely need a good torque wrench and maybe some specialty bits and extensions.  Now, every mechanic loves buying more tools, but in this case it probably isn’t a good use of your money.  Lastly, replacing a head gasket requires an intimate knowledge of how an internal combustion engine works, specifically the model you’re working on, to make sure you do not damage or destroy anything.  A few things out of place when putting it back together can leave you with a blown motor.

As you can see, the most cost effective and best use of your time would be to pick up BlueDevil Pour-N-Go Head Gasket Sealer, the best head gasket sealer on the market, from your local auto parts store and repair your leak guaranteed.

BlueDevil Pour-N-Go Head Gasket Sealer

You can find BlueDevil products at any of our partnering auto parts stores:

  • Advance Auto Parts
  • AutoZone
  • Pep Boys
  • CarQuest Auto Parts
  • Bennett Auto Supply
  • Prime Automotive Warehouse
  • NAPA
  • O’Reilly Auto Parts

You can also purchase BlueDevil Pour-N-Go Head Gasket Sealer directly from BlueDevil just click the link.

Pictures Provided by: www.cheap-motorcycle-farings.com

356 responses to “Blown Head Gasket Repair Procedure

  1. I have bought a can of the head gasket repair. I have a 1997 Lincoln Mark 8 without an access to the radiator other then the overflow container. Do I pour the bottle for one minute in the overflow tank, that is low right now with fluid? Do I remove a radiator hose? do I fill up the overflow tank first? Please let me know how to apply your product, thank you, Harry at harrycelder@msn.com

    1. If your vehicle has a reservoir/overflow rather than a radiator cap, instead of pouring it through the reservoir/overflow, with the car off and engine cold, you may add the product through the top radiator hose. Once it has been added reconnect the hose and start the idle from that point.

      Feel free to contact us with any further questions.

        1. Rolando-

          You may still be alright. However, if you are still getting the same symptoms, instead of pouring it through the reservoir/overflow with the car off and engine cold you should disconnect the top radiator hose and add the product there. Once it has been added reconnect the hose and start the idle from that point.

          Feel free to contact us with any further questions.

          Thanks,

          BDP

          1. when i use blue devil head gasket sealr on my car how long until i add up coolant agin or does it need to be flush after using the product or can you mix the blue devil and coolant togheter

          2. John-

            After the BlueDevil process is complete (after the idle) you should allow the engine to cool down for at least 2 hours. Once it has cooled you may drain the system down to add your antifreeze.

            -BDP

          3. I have a 1998 Cadillac deville , I have the overheating issue when I’ve been driving for long distances. Went to my trusted Mechanic and was diagnosed with a blown head gasket. My only question is I don’t have a radiator cap to pour it in to. Do pour it in my coolant tank?

          4. Joe-

            If your vehicle only has a reservoir/overflow rather than a radiator cap, instead of pouring BlueDevil through the reservoir/overflow, with the car off and engine cold you should disconnect the top radiator hose and add the product there. Once it has been added reconnect the hose and start the idle from that point.

            Thank You!

            -BDP

          5. I did the same it runs better but it’s still has the white smoke and losing a little collant now but no longer running hot do u think I need another treatment

          6. Kya-

            When did you do your application of the product? Remember, the exhaust system may produce smoke for several hours before it can clear itself out. Feel free to contact our technical support line at 888-863-0426 so that we can get a better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

            Thank you!

            -BDP

        1. Will-

          It is possible that you may be getting combustion/exhaust gases blowing into the cooling system and creating pressure which may be causing the reservoir to “pop off”. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with a low compression reading. If you are not sure which one that is, you may pull all of the spark plugs and will sometimes notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.

          Thank You!

          -BDP

          1. So if your are positive which cylinder has the leak you should remove that spark plug during the pouring and idle process? I have a 2004 Civic and I am 100% sure it is cylinder #2 after compression checks on all 4 cylinders I just want to be sure before I do it.

          2. Sean-

            If you are getting combustion/exhaust gasses into the cooling system, we recommend removing the spark plug from the affected cylinder. You would remove the spark plug before starting the BlueDevil process, while the engine is cold. Based on your description, you would want to remove the spark plug from the #2 cylinder to relieve some of the pressure from building up, thus allowing the product to circulate and seal properly.

            Thank you!

            -BDP

          1. Noah-

            The reason for putting your heat on with the blower to the max, during the BlueDevil Head Gasket Procedure, is to draw heat from the engine to help it from overheating during the 50 minute idle. As long as the vehicle isn’t going to overheat in that 50 minutes, the product would still be able to seal. Feel free to contact our technical support line at 888-863-0426 with any other questions.

            Thank you!

            -BDP

      1. I have a 2000 Nissan Xterra and I think the head gasket may be blown. If I add Blue Devil, all I do is just pour it in the radiator or top radiator hose then let it run for 50 min? Do i empty the radiator first?

        1. Sky-

          Yes, you will flush the cooling system first and refill it with water. Then, starting from a cold start you will slowly add the recommended amount of BlueDevil through the radiator cap.

          Thank you!

          -BDP

          1. How much water should be put back in the radiator once it is flushed and before adding the Blue Devil?

          2. Khoury-

            Thank you for your question. After flushing the radiator, you should be filling the system back up to capacity, leaving just enough room for the recommended amount of the product. You can find your cooling system capacity in the vehicle’s owners manual.

            Thank you!

            -BDP

      2. We are getting ready to purchase and use your product. I have read your instructions and I have a question. It says to turn the heater on but our blower motor is gone so no heat blows what should we do?

        1. Keri-

          As long as your vehicle will not overheat during the 50 minute idle then you do not have to worry about running the heater. This step is recommended simply to pull heat from the engine.

          Thank You!

          -BDP

          1. AJ-

            Unfortunately, if the vehicle is overheating fairly quickly, it may mean that the leak or symptoms the vehicle is having are a little to extreme for the product. Feel free to contact our technical support line at 888-863-0426 with any other questions.

            Thank you!

            -BDP

      3. I have an Audi A4 Quattro that is belied to have a blown head , I’ve read many of these comment feeds and I’m wondering if I should keep my radiator completely empty or fill with water like it says in some of Your responses or do I fill with the specialty Audi antifreeze I have that is a concentrate and needs to be diluted or mixed with water ?

        1. Shanell-

          For best results, you should flush the cooling system and fill it with water prior to adding BlueDevil Head Gasket Sealer.

          If you have any further questions feel free to contact our tech support team at 888-863-0426.

          Thank you!

          -BDP

      4. I have a 1995 Ford Windstar….I bought a bottle of the head gasket sealer to fix my leak…..do I need to drain all of the coolant in the radiator before adding the sealant?

        1. Todd-

          Thank you for asking about your Ford Windstar. As per the directions, you will be removing the thermostat and performing a cooling system flush, with the use of a radiator flushing agent, prior to adding the product. You will only be running the product with water in the system. Feel free to contact our technical support line at 888-863-0426 with any other questions.

          Thank you!

          -BDP

          1. The bottle says nothing about removing the thermostat, nor flushing the system first. Pleas explain.

          2. William-

            There are two different Head Gasket Sealers that we manufacture.
            You may use either Head Gasket Sealer. The one you have is the “Pour N Go” (16 oz./white label) which is a less concentrated formula that does not require the removal of the thermostat or a flush of the cooling system prior to use. Whereas the “Mechanic Approved” (32 oz./yellow label) requires both the removal of thermostat and a flush before applying the product; the 32 ounce is the more concentrated formula.

            The product with the yellow label will give you best overall results as long as you can remove the thermostat and flush the system prior to use. However, if the thermostat is difficult to remove or you would rather not then you can always use the “Pour N Go”. With the use of either product, be sure to follow the guidelines for the proper amount to use.

            Thank you!

            -BDP

          3. I am about to use your product, head gasket sealer. I read on the botel that i need to remove the thermostat before i start the process.
            What i would like to know is, when do i fit the thermostat again, after i had the vehicle run for 50 min or may i fit it before i start the 50 min process?

          4. Christiaan-

            Once you complete the 50 minute idle, allow the vehicle to cool off for a couple of hours (at least 2 hours). At that point, you would be able to put the thermostat back in. Feel free to contact our technical support line at 888-863-0426 with any other questions.

            Thank you!

            -BDP

        1. Rick-

          It is important that you have drained enough fluid from the cooling system prior to adding the proper amount of BlueDevil Head Gasket Sealer so that enough BlueDevil can be added. Not using enough product may hinder the results of BlueDevil.

          Thank you!

          -BDP

      5. Hi, I have a 2000 Jag xkr with a blown head gasket. Car never overheated, white smoke disappeared on way to mechanic. Will not pay 5k for repair. Can I add 16 ounce seal and go to reservoir or do I need to disconnect top hose and do that way.? No radiator cap on car.fluid getting on spark plugs so idling rough. Do I change plugs before or after procedure?

        1. Steven-

          If your vehicle only has a reservoir/overflow rather than a radiator cap, instead of pouring BlueDevil through the reservoir/overflow, with the car off and engine cold you should disconnect the top radiator hose and add the product there. Once it has been added reconnect the hose and start the idle from that point.

          You do not need to change the spark plugs before the BlueDevil process; you may wait until the process is complete and the engine has cooled back down.

          Thank you!

          -BDP

    2. I have a 96 s10 4 cyl. No water in oil, but a pretty heavy coolant leak. I added pour and go as directed and am not loosing as much coolant but still loosing some. Can I add another bottle? Can doing so potentially harm anything or clog it up? Thanks

          1. Jeremy-

            As long as the vehicle will maintain idle for a full 50 minutes, and you are not losing more than about a quart of water/coolant, you would be a great candidate for the product. Feel free to contact our technical support line at 888-863-0426 with any other questions.

            Thank you!

            -BDP

    3. I gave s vanagon and can see the gasket leak do to the gasket blown out. .will your product work to fix the gap in the gasket?? And will your product make it hard to change the gasket at a later time??

      1. Lisa-

        Please contact our technical support line at 888-863-0426 so that we can get a little more information and help further diagnose your vehicle. Using the Head Gasket Sealer would not prevent or make it difficult to change the head gaskets at a later date.

        Thank you!

        -BDP

      2. Lisa: you go girl, on the diggin in & not being afraid to go do a pretty intense ‘Blue job!’ (…as opposed to a ‘Pink Job’ like my sis calls them) as (You can SEE) many men would be afraid to take on something of this deep an endeavor. I’m about to do a Second Mercedes with this, having great results on another a while ago. Hope yours worked out as well as my 1st! Mike, San Jose

    4. I poured Blue Devil head gasket sealer pour-n-go in my radiator after I put water in it and in the overflow. The thing is, I was only able to put half of the bottle because the radiator is full of water already. However, I still had the engine run for 50 mins as directed. I checked underneath if there’s still leak and the gauge, if it’s overheating. Temp level is normal (short of middle) and no overheating for 50 mins and no sign of leakage after 20 mins of engine running.

      My question is, do I still have to redo the procedure to Finnish off the bottle?

      1. Mark-

        If you are no longer experiencing a leak, then you would not use the remainder of the bottle. It seems that the half of the bottle used was enough to seal the leak in your vehicle, even though the directed amount would have been the full 16 oz. You should be good to go at this point. Feel free to contact us if you have any questions at 888-863-0426.

        Thank you!

        – BDP

    5. I have a 2003 BMW 325i the instructions say you take out the thermostat but on the 325i the thermostat is embedded inside the tube can I still run the Blue Devil with a thermostat inside

        1. I have a 1999 Mercury Sable with a blown head gasket. My question is will it really work or am I wa sting time and money because my mother had it applied to her 1999Ford Taurus and it didn’t work and was told that it is only a temporary fix.

          1. Steede-

            The BlueDevil Head Gasket Sealer carries an overall success rate of over 90%. As long as the vehicle will idle for 50 minutes without stalling out or overheating and will not lose more than about 1 quart of water/antifreeze during that run then there is a very good chance BlueDevil will seal it. Once BlueDevil creates a seal it is a permanent fix.

            Feel free to contact our tech support team at 888-863-0426 with any further questions.

            Thank you!

            -BDP

      1. Jon-

        If you are noticing signs of water/coolant in the engine oil then we do recommend changing the oil before and after the BlueDevil process.

        Feel free to contact us at 888-863-0426 with any further questions.

        Thank you!

        -BDP

    6. I have a 95 gmc sonoma with a minor heater core leak, the leak is internal so i have coolant leaking fr under my dashboard onto my passenger floor. Will this product work? And where do i add it to on this specific car? Thanks

      1. Peter-

        Thank you for asking about your GMC Sonoma. Yes, the BlueDevil Head Gasket Sealer would treat a heat core leak. You will add the product directly into the radiator through the radiator cap. If the vehicle only has a reservoir or overflow tank, with the vehicle off and engine cold, you may disconnect the upper radiator hose, pour the product in through there, reconnect the hose, and then start the idle from that point. Feel free to contact our technical support line at 888-863-0426 with any other questions.

        Thank you!

        -BDP

    7. I have a 2002 Honda Accord. I recently used Blue Devil and brother I am so far really surprised and happy! This stuff actually works! Now let’s see if it passes the rest of time… I’ll let you all know. ‘

    8. I’m not sure about the final step 6 on bottle:

      “Let engine cool before installing new thermostat. Drain enough fluid to refill with compatible anti-freeze”.

      So the wafer+blue devil+antifreeze mixture is ok for below freezing temperatures?

      Or is it better to drain out all of the water+blue devil and refill with 50/50?

      1. Paul-

        The BlueDevil Head Gasket Sealer only reacts to heat once (one heat cycle). After the 50 minute idle and the vehicle cools, any extra BlueDevil in the system would be like extra water. You would be fine either way. You can drain enough fluid to add your compatible antifreeze or you can completely drain the system and start over with fresh water and antifreeze for your 50/50 mix.

        Thank you!

        -BDP

  2. I see that the instructions indicate removal of the thermostat. I have seen horror stories about plugged heater cores. I have a van with a front/rear heater core. Would it be ok to bypass the heater cores while running the first 50 minutes? (I haven’t looked to see how difficult that would be yet). My thermostat, radiator and water pump have all been replaced in the last 1000 miles so I don’t think they have any buildup yet, but the heatercores have over 200,000 miles on them.

      1. I am under the impression that the poor and go formula does not require a radiator flush or the removal of the thermostat? Is that correct, or not?

          1. You seem to have conflicting answers from Pour and Go techs here.

            In an earlier post you tell someone that the system has to be flushed and filled before the sealer and here you tell someone that it is fine to just pour it in….with antifreeze. Which way works best might be the question?

            BlueDevil Pro on August 18th, 2015 – 2:23pm
            Sky-

            Yes, you will flush the cooling system first and refill it with water. Then, starting from a cold start you will slowly add the recommended amount of BlueDevil through the radiator cap.

            Thank you!

            -BDP

          2. Greg-

            There are two different Head Gasket Sealers.

            You may use either Head Gasket Sealer. The “Pour N Go” (16 oz./white label) is a less concentrated formula that does not require the removal of the thermostat or a flush of the cooling system prior to use. Whereas the “Mechanic Approved” (32 oz./yellow label) requires both the removal of thermostat and a flush before applying the product; the 32 ounce is the more concentrated formula.

            The product with the yellow label will give you best overall results as long as you can remove the thermostat and flush the system prior to use. However, if the thermostat is difficult to remove or you would rather not then you can always use the “Pour N Go”. With the use of either product, be sure to follow the guidelines for the proper amount to use.

            If the system appears to be dirty or the antifreeze has not been changed in a long time then it would be a good idea to flush the system with the sue of either of our BlueDevil products.

            Feel free to contact us at 888-863-0426 with any questions.

            Thanks!

            -BDP

  3. I have a volvo penta 2.3 inboard motor with heat exchanger tank but I blew head gasket today can I use this stuff to fix the head??

    1. Josh,

      Our products are formulated for automobiles only. We have heard people use it with success in their inboard motors but we can’t approve or disapprove using it for your boat.

      If you need further assistance please give our tech line a call at 1.888.863.0426.

      -BDP

  4. i have a blown head gasket on a 99 deville. i removed the thermostat and have radiator flush in the system. can i add the blue devil head gasket sealer with the radiator flush in the system or do i need to drain it.

    1. Hello my name is steve I have a 93 deville 4.9 with a blown head gasket and I am thinking of useing this product did it fix your 99 deville a shop told me changing the gaskets could potentially couse problems to the bottom end so naw I’m clueless on what I should do

      1. Steve-

        We have had success in using the BlueDevil Head Gasket Sealer in Northstar engines. Feel free to contact our tech support team at 888-863-0426 with any questions you may have about the use of BlueDevil and your Cadillac.

        Thank You!

        -BDP

  5. I have 01 e38 or 01 740il BMW
    White smoke after car failed I charge radiator and warterpump and the hoses and thermostat . So I know when it over heated it was a chance I messed up the heads . My question is how and what to do to try this system I’m my car. Thank you .

    1. Jacob,

      Yes, it will potentially work in your Oldsmobile. Due to water being in the oil, you will want to change the oil before and after the BlueDevil process.

      We would strongly recommend that the thermostat is removed and left out for the 50 minute idle; this will help keep the engine temperature down. As long as the vehicle is able to idle for the recommended 50 minutes, without stalling or overheating, you will have a great chance at sealing the leak.

      1. I have a 97 nissan altima with a blown head gasket it cannot run for 50 min without it overheating can I still try to use this product?

        1. Melissa-

          In order for the BlueDevil Head Gasket Sealer to work properly the vehicle should be able to idle for a full 50 minutes without overheating or stalling out. If it is overheating prior to that amount of time then the leak may be a little bit too large for what BlueDevil is intended to fix.

          Thank You!

          -BDP

          1. I pumped coolant all through the crankcase of ford 4.2 v6. changed oil and oil filter. freed hydrolock through spark plug openings. During pretreatment coolant flush after removing thermostate. I obviously recontaminated oil. I want the engine to last the 50 min of the BD cycle so I am changing the oil again and will keep fingers crossed.
            I am guessing, if sucessful, I will have to change the oil and filter after the BD cycle during which there must be some further contamination.
            Thanks
            Hopeful

          2. Joshua,

            One further thing we would recommend doing before you start the engine again is removing the oil pan as well. Oil will always float on water so there may be some baffles in your oil pan where the water will remain and not be drained out through the drain plug of your oil pan. It may be a tedious job, but it could help save your engine’s main bearings and will help guarantee you don’t have standing water in your oil pan.

        1. I had a blown head gasket an wuss was stuck 30 miles from home and I bought the Blue Devil 16 oz pour and go. I siphoned out a little coolant and poured the product in and within 50 minutes tha white smoke out of the tailpipe went away and made it home, saving me tow charges and major mechanics costs. Great product !

  6. I just changed my thermostat and hoses, two days ago and tonight i put in Blue Devil (followed instructions)…unfortunately when I i gave it a test ride after its 50 minutes after adding it in…the bottom radiator hose disconnected because i didn’t put the clamp on properly! There was coolant and blue devil spots everywhere! Should I retry with Blue Devil…or will it damage something.

    1. Paul-

      You may not need to add more BlueDevil at this point. Because the vehicle did make it through the full 50 minute idle it is possible that the seal was already created by BlueDevil. At this point, we recommend refilling the cooling system and clamping everything back up. Once you have done so you may go ahead and drive/run the vehicle to determine whether or not it has sealed.

      Feel free to contact our tech support team at 888.863.0426 with any further questions.

    1. Phil-
      If your vehicle has a reservoir/overflow rather than a radiator cap, instead of pouring it through the reservoir/overflow, with the car off and engine cold, you may add the product through the top radiator hose. Once it has been added reconnect the hose and start the idle from that point.

      Feel free to contact us with any further questions.

  7. just done a cylinder leak down test on my daughters 1984 chevy k10 truck i established that the compression is leaking out thru the #4 and #6 cylinder so convinced its blown head gasket but i dont have water in oil and no smoking will blue devil still fix it

  8. 1998 Neon, does not overheat, but goes through about 1 gallon of water every 2 days. There is no water in the oil, water/coolant is full of oil (resembles chocolate milk). Is this repair a good canidate for your product?

    1. Kevin-

      Unfortunately, none of our products are designed to stop oil from entering the cooling system; they will work for the other way around, coolant into the oil, but not oil into the coolant.

      -BDP

  9. I have a 99 mercury sable 3.0, my reservoir tank failed I replaced it and then white smoke started comming out tailpipe. I had pure water in radiator and all of water was rust color.my car never actually overheated but other mech.tell me blown head gasket $800. Will blue devil work on my car ? My car still runs like a champ and smoke isn’t constant, but temp.still goes up n down. What should I do please help me I’m a plumber not mechanic.

    1. Israel-

      Yes, the BlueDevil Head Gasket Sealer should work in your Mercury. You will definitely want to run a full cooling system flush and refill prior to adding the product. If you run into any questions you may contact our tech support team at 888.863.0426.

      -BDP

  10. Hi,

    I just used Blue Devil today on my Peugeot 206 1.4 1999. I didn’t remove the thermostat (it’s new as I replaced it a few weeks ago). Does it affect anything? How long should I let blue devil in the system? FYI, I drained the radiator (using radiator flush to clean it) before using blue devil. After using blue devil, I can see a little bit of white smoke coming out of the exhaust. Is it normal? Thank you.

    1. Rizal-

      The direction that asks the thermostat to be removed has nothing to do on whether or not the thermostat is new or old. We require the thermostat to be removed to create a free flow for the full 50 minute idle while the product is active. However, it has still worked in the past when the thermostat was not removed but the overall success rate is somewhat lower.

      BlueDevil may remain in the system indefinitely or you may drain it any time after the vehicle has cooled down. There is no benefit to leaving it in or taking it out.

      Keep in mind the system may produce steam or smoke for a few days until the moisture left over in the system has completely cleared out.

      -BDP

  11. I have a vw beetle 2002 1.8t just curious if I can put your product inside my radiator just as a safety precaution? Not sure if it is a head gasket but it’s a possibility. Would it hurt? I mean worse cast scenario is the head gasket is leaking and your product fixes it right? Thanks in advance

    1. Clint-

      You do not want to use our BlueDevil Head Gasket Sealer as preventative maintenance. You should confirm as to whether or not there is a head gasket leak before considering the use of BlueDevil.

      -BDP

  12. I have a 2001 impala that leaks water in the oil and has white smoke it also overheats very easy I was told to put blue devil in my engine but to put the radiator hoses together and the heaters hoses together and that would fix it what is your input.

    1. Yes, you may use either product as long as the vehicle can idle for 50 minutes without overheating or stalling out. In addition to the directions, you will want to change the oil before and after the BlueDevil process to ensure proper results.

      The “Pour N Go” (16 oz./white label) is a less concentrated formula that does not require the removal of the thermostat or a flush of the cooling system prior to use. Whereas the “Mechanic Approved” (32 oz./yellow label) requires both the removal of thermostat and a flush before applying the product; the 32 ounce is the more concentrated formula.
      The product with the yellow label will give you best overall results as long as you can remove the thermostat and flush the system prior to use. With the use of either product, be sure to follow the guidelines for the proper amount to use. Based on your capacity, you will be using 16 ounces either way.

      Feel free to contact us at 888.863.0426 with any further questions.

        1. Jessi-

          If the car will overheat prior to the 50 minute idle being complete then that is usually an indication that the problem is too extreme for what BlueDevil is intended to fix and will require hard part repair.

          Thank you!

          -BDP

  13. 2001 Pontiac Grand Am 6 cyl 3.4 engine. Daughter has experienced loss of coolant but no obvious leak. Temp gauge has gone to hot but she stopped & turned engine off. Pressure test okay. Today, while driving, sudden clanking/rapping type noise & lost power steering (fluid ok, belt new & ok). Stopped vehicle, upon trying to restart, louder clanking/rapping noise. Removed oil cap, oil appears “creamy yellowish/white” & sludge like. Vehicle has not fully overheated … yet. Suspect blown head gasket. Will Blue Devil help under the described circumstances?

    1. Brenda-

      You should first change your oil to see if that helps with the “clanking” noise you are experiencing. If it does, then you would be safe in using the BlueDevil Head Gasket Sealer. If the noise continues after changing the oil then you may want to take the car into a certified mechanic to have it further diagnosed.

      If you decide to use the BlueDevil then make sure that the oil is changed before and after the process.

      Feel free to contact us at 1.888.863.0426 with any questions.

    1. Steve-

      Yes, the BlueDevil Head Gasket Sealer will work on your inboard boat. You will want to change the oil before and after the BlueDevil procedure to ensure proper results. Also, be sure to follow the capacity chart so that the correct amount of BlueDevil is used.

      Feel free to contact us at 888.863.0426.

    2. Do i leave the heater on full blast the whole 50 mins? And if my car starts over heating during the 50 mins what do i do

      1. Yes, the heater should be left on max for the full 50 minute idle, when applying the BlueDevil Head Gasket Sealer. If the car starts overheating prior to the end of the 50 minutes you should shut the engine down and allow it to cool down.

        Thank You!

        -BDP

  14. Recently i have been having overheating problems and it blow out a hose to my heater on my 2002 Dodge Durango. Living in Hawaii i had the mechanic seal off the heater since we have no need for heaters here. It now appears i have a small leak in my head gasket and i am looking to use your product Pour and Go. However it says to run the heater first. I am guessing this is so it doesnt clog up the heater core. Hopefully since i dont have a heater i can just use Blue Devil from after that part of the instructions. Can you please let me know if my line of thinking is right here or how i should proceed.
    Thanks, Gary

    1. Gary-

      The reason we recommend running the heater on max during the idle is to help pull heat off the engine. As long as your vehicle can idle for 50 minute period without stalling out or overheating then you will have no issues in getting proper results from the BlueDevil whether or not the heater is connected. You will simply ignore the step that mentions running the heater on max.

      Feel free to contact our tech support team at 888.863.0426 with any questions.

      -BDP

  15. Hi, I’ve used blue devil with success in the past. Great product! I have a 1995 Tbird with blown head gasket and would like to use blue devil to save it. The heater does not work. I haven’t a clue as to why the is not working, only that the fan is not blowing and no heat or ac. This is a car my son got and history is unknown. Wondering how to use blue devil or if it can be used in this situation. Any help appreciated. Again great product, saved my daughters’ 2002 PT cruiser, runs great 16 months after treatment.

  16. Hi. Is it ok to add blue devil through the reservoir if I do not have access to the radiator? I know I can remove the top radiator hose but that is difficult on my e46 BMW engine.

    1. Michele-

      If your vehicle has a reservoir/overflow rather than a radiator cap instead of pouring it through the reservoir/overflow, with the car off and engine cold, you may add the product through the top radiator hose. Once it has been added reconnect the hose and start the idle from that point.

      You mentioned that the top hose may be difficult to access but we strongly recommend that it is added through that hose rather than the reservoir.

      -BDP

  17. i have a 85′ vw vanagon. it has 50 percent loss of compression in one cylinder and after running for a hour i see bubbles in the overflow tank, however it is not leaking anti freeze or blowing smoke. i feel this is a head gasket issue and i need blue devil, what do you think? and can i use it on a vanagon?

    1. Kelly-

      As you mentioned, it sounds like the vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure. We would recommend using the BlueDevil Head Gasket Sealer. It is 100% safe to use on your Vanagon

      To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.

      Feel free to contact us with any questions.

      Thank You,

  18. hi I have an 2000 Oldsmobile Alero in I was recently told I have a blown head. but he didn’t know if the head was crack are is it just blown so I really need to know is it possible that the blue devil will work.

    1. Kristina-

      Whether you are dealing with an actual crack or any type of breach in the head gasket the BlueDevil Head Gasket Sealer will seal either type of leak.

      Feel free to contact us at 888-863-0426 with any questions along the way.

      Thanks,

      BDP

  19. I took thermostat out and reconnect hose before using Blue Devils today I did notice there was slight dripping from housing. Will that affect the effects of Blue Devil.

    1. Stacey-

      The way you can get around the leaky housing is by taking the thermostat with housing and modifying it so that the middle piece does not close; you may remove this piece or gut the middle of the thermostat. By doing so you will create a free flow and still be able to have the full housing installed.

      Once the BlueDevil process is complete you will need to replace the thermostat.

      Feel free to contact me with any further questions.

      Thanks,

  20. I have a 04 Cadillac deville it blows white smoke out the tail pipes I want to use
    Blue devil what should I do to fix the blown head gasket problem ?

    1. Johnny-

      You will need to use the BlueDevil Head Gasket Sealer (32 ounce bottle with a yellow label). Be sure to follow the directions exactly, including removing the thermostat and flushing the cooling system prior to adding the product.

      Feel free to contact our tech support team at 888-863-0426 with any questions along the way.

      -BDP

  21. I have a 97 Mustang. 3.8 n I think I have a cracked head or blown head gasket. I do not have. a reservoir tank. n I just wanted to kno whick label to use. and what should I di or how should I use this product..would appreciate. any advice, so my car will be fixed. n plz answer me bk ASAP. as this is my only ride. thanks.

    1. Robert-

      First of all, we are sorry to hear that you are having issues with your Mustang.

      You may use either Head Gasket Sealer. The “Pour N Go” (16 oz./white label) is a less concentrated formula that does not require the removal of the thermostat or a flush of the cooling system prior to use. Whereas the “Mechanic Approved” (32 oz./yellow label) requires both the removal of thermostat and a flush before applying the product; the 32 ounce is the more concentrated formula.

      The product with the yellow label will give you best overall results as long as you can remove the thermostat and flush the system prior to use. With the use of either product, be sure to follow the guidelines for the proper amount to use. Based on your capacity, you will be using 16 ounces either way.

      Thanks,

      -BDP

      1. Hi,

        So my dad used twice the amount of blue devil for his ’95 tacoma and it worked great for 10 months. Then the same problems started again recently. IS it okay to use blue devil again?

        1. Elaine-

          It is safe to reapply the BlueDevil Head Gasket Sealer at this point. You should use the recommended amount to ensure best results.

          Feel free to contact our tech support team at 888.863.0426 with any questions.

          -BDP

    1. Wes-

      Yes, the BlueDevil Head Gasket Sealer will still work in this instance. To ensure best results you will want to change your engine oil before and after the BlueDevil process.

      -BDP

  22. Hi, I have a 2000 civic 1.6L. I’m curious what the recommended amount of blue devil would be. Can I use the 16oz bottle, or will I need the 32oz? Thanks for the help

    1. Greg-

      You may use either Head Gasket Sealer. The “Pour N Go” (16 oz./white label) is a less concentrated formula that does not require the removal of the thermostat or a flush of the cooling system prior to use. Whereas the “Mechanic Approved” (32 oz./yellow label) requires both the removal of thermostat and a flush before applying the product; the 32 ounce is the more concentrated formula.

      The product with the yellow label will give you best overall results as long as you can remove the thermostat and flush the system prior to use. With the use of either product, be sure to follow the guidelines for the proper amount to use. Based on your capacity, you will be using 16 ounces either way. I would still use a flushing agent to flush your cooling system prior to using the product to ensure proper results.

      You may contact our tech support team at 888-863-0426 from 8:00 AM – 5:00 PM (EST) Monday through Friday to speak with a product specialist.

      Thanks,

      BDP

  23. Ihave a 98 Cadillac deville with a blown head gasket, which product do I need to use, and does a blown head gasket cause your car to misfire?

  24. I have a 2002 Dodge durango and I went to a certified mechanic and it’s 2700 dollars to fix. I don’t really have anyone to take off the thermostat and flush out the radiator. So I settled with the pour and go. Once I pour it in and refill it with fluid do I let it sit running or drive it?

    1. Shavon-

      After the recommended 50 minute idle is complete you should shut the engine off and allow it to cool down (at least 2 hours). Once it has cooled you may drive the vehicle as normal.

      -BDP

    2. I have a 2003 chevy impala and I used blue devil. It ran excellent through the 50 minute idle process but I drove it 30 minutes later and the leak once again occurred. Will the bluedevil still work after this incident or do I need to use another one.

      1. Jermaine-

        Please contact our tech support team at 888-863-0426 so that we may discuss the use of BlueDevil and your Impala in more detail. We would like to go over what you saw after the first application and what the current condition of the car is.

        Thank You!

        -BDP

    1. Bob-

      You may use either Head Gasket Sealer. The “Pour N Go” (16 oz./white label) is a less concentrated formula that does not require the removal of the thermostat or a flush of the cooling system prior to use. Whereas the “Mechanic Approved” (32 oz./yellow label) requires both the removal of thermostat and a flush before applying the product; the 32 ounce is the more concentrated formula.

      The product with the yellow label will give you best overall results as long as you can remove the thermostat and flush the system prior to use. Based on your capacity, you will be using 16 ounces either way. I would still use a flushing agent to flush your cooling system prior to using the product to ensure proper results.

      Feel free to contact us with any further questions.

      Thank You,

      -BDP

  25. I was going to but the product but my heater does not work right now but I have a blown head gaskit , I am replacing my water pump cause its bad, but ur in structions sat have the heater on high when using what do I do

    1. Maryann-

      As long as the vehicle will idle for the full 50 minutes without overheating or stalling out then you can still use BlueDevil without having to run your heater. The reason we ask that the heater is run on max is to help pull heat off of the engine and prevent it from overheating.

      -BDP

        1. MaryAnn-

          You may use either Head Gasket Sealer. The “Pour N Go” (16 oz./white label) is a less concentrated formula that does not require the removal of the thermostat or a flush of the cooling system prior to use. Whereas the “Mechanic Approved” (32 oz./yellow label) requires both the removal of thermostat and a flush before applying the product; the 32 ounce is the more concentrated formula.

          The product with the yellow label will give you best overall results as long as you can remove the thermostat and flush the system prior to use. With the use of either product, be sure to follow the guidelines for the proper amount to use; a 4 or 6 cylinder will only require 16 ounces of either product.

          Feel free to contact us at 888-863-0426 with any further questions.

          -BDP

          1. The pour and go, what are the instructions? Would I add it in the resivore where I add the anti freeze goes? Does the antifreeze thing have to be filled? I’m going ng with the pour and go cause I have no one to help me, do it.

          2. Maryann-

            If your vehicle only has a reservoir/overflow rather than a radiator cap, instead of pouring it through the reservoir/overflow, with the car off and engine cold you should disconnect the top radiator hose and add the product there. Once it has been added reconnect the hose and start the idle from that point.

            The full directions for the BlueDevil Pour N Go can be seen here: http://store.gobdp.com/pour-n-go-directions/

            Feel free to contact us at 888-863-0426 with any further questions.

            Thanks,

            -BDP

  26. I have a 98 jeep cherokee. I noticed it doesnt overheat but they did mark it with a misfire cylinder 1. They took the sparkplug out and some water is spitting out a bit. I dont lose coolant,but mech said its the head gasket. A little water runs out the muffler and starts to have little hesitatiin while running. Will this devil fix this?

    1. Tony-

      Yes, BlueDevil Head Gasket Sealer will remedy the current symptoms you are experiencing. It is sounding like you are noticing the early symptoms of a blown head gasket.

      Feel free to contact our tech support team at 888-863-0426 with any questions.

      -BDP

  27. I have a 05 altima wit a blown head gasket the oil and water already done mix wat should I do?
    And do ur product clog up ur radiator?

    1. Step-

      Yes, you can definitely still use the BlueDevil Head Gasket Sealer with success. You will want to change the oil before and after the BlueDevil process to ensure proper results.

      Thanks,

      -BDP

  28. i have a blown head gasket. i put water in the radiator and it goes to the engine and oil. smoke comes out tail pipe. will this product help me? or just go to the oil engine

    1. Beau-

      Yes, the BlueDevil Head Gasket Sealer will remedy all of the symptoms you have described. You will want to change your oil before and after the BlueDevil process to ensure best results.

      Feel free to contact our tech support team at 888-863-0426 with any questions.

      Thanks,

      -BDP

  29. I bought a bottle of Blue Devil 32oz. I blew a head gasket in a 1999 Chrysler 300M and there is oil in the coolant tank. If I flush the radiator and add the Blue Devil as it is instructed to do, will it work in this instance?

    1. Klynt-

      Unfortunately, we do not manufacture a product that will work once oil has entered the cooling system. It will work if you are getting water/coolant pushing into the oil but not the other way around.

      -BDP

  30. I have a 2001 Cadillac Deville no water/oil mixture. Just a little steam from tail pipes, but im still thinking head gasket bad because car runs hot after driving and loses heat and antifreeze. Will the 16oz pour and go work for me?

    1. Tony-

      It sounds like you do have a leaking head gasket based on the fact that you are losing antifreeze. We recommend using the 32 ounce bottle of BlueDevil on your Cadillac as the “Pour N Go” is formulated for 4 or 6 cylinder vehicles and you are working with a V8.

      Feel free to contact us with any questions.

      -BDP

    1. Jodi-

      If your vehicle only has a reservoir/overflow rather than a radiator cap, instead of pouring it through the reservoir/overflow, with the car off and engine cold you should disconnect the top radiator hose and add the product there. Once it has been added reconnect the hose and start the idle from that point.

      -BDP

  31. How can I tell if I have water in my oil? I am planning to use Blue Devil Pour and Go on my 2003 6 cylinder BMW325i. I am losing coolant and the dealer has diagnosed it as a blown head gasket (or cracked head or cracked block). I just changed the oil 2 days ago and drove the car 180 miles and I now need to add coolant to the system. The oil is the same color and viscosity as when it went in 2 days ago. Is there a way I can be sure no water is mixed in with the oil? Thanks,

    1. Lee-

      The oil will usually look “milky” or have a white substance show up when the dipstick is pulled. You will not always have water in the oil when you have a blown head gasket.

      If it has been diagnosed with a blown head gasket or cracked head then we definitely recommend using the BlueDevil “Pour N Go” to seal the leak.

      Feel free to contact our tech support team at 888-863-0426 with any further questions.

      -BDP

  32. One more question re: diagnosing water in oil… The reason I am asking is that you all suggest that the oil is changed prior to using blue devil pour and go if the oil has water in it. This vehicle ( 2003 BMW 325i 6 cylinder) has the thermostat attached to the housing and it is a $50 part. I can easily flush out the cooling system though. To achieve best results would you recommend to use the Blue Devil mechanic approved yellow label with the flushed radiator but with the thermostat in place or use the pour-n-go.

    1. Lee-

      You may use either Head Gasket Sealer. The “Pour N Go” (16 oz./white label) is a less concentrated formula that does not require the removal of the thermostat or a flush of the cooling system prior to use. Whereas the “Mechanic Approved” (32 oz./yellow label) requires both the removal of thermostat and a flush before applying the product; the 32 ounce is the more concentrated formula.

      The product with the yellow label will give you best overall results as long as you can remove the thermostat and flush the system prior to use. With the use of either product, be sure to follow the guidelines for the proper amount to use. Based on your capacity, you will be using 16 ounces either way. I would still use a flushing agent to flush your cooling system prior to using the product to ensure proper results.

      Feel free to contact us with any further questions.

      Thanks,

      BDP

  33. I bought a 1995 Suzuki Sidekick with a 1.6L engine. It ran like a top the first 2 days I had it, then the cotton the snake I got the truck from push through the heater core and clogged it. So I I bypassed it but I noticed that it had been acting like the head gasket was toasted, but after by passing the heater core and I’m at about 30 minutes in to the 32 Oz Mechanic’s treatment, the truck is idling smooth as velvet and your product seems to be woring like a champ. I’d recommend it to anyone short on. Cash and in a pinch like I am. I have a meeting in a town 200 Mikes away tomorrow and this is my only transportation,will keep you updated on my results. Thanks Blue Devil you guys kick A##!

  34. I have a 2005 chevy equnox with smoke coming out of tail pipe and over heating mechanic said blown head gasket which blue devil to get and how do I flush the system

  35. HELLO I HAVE A 93 TOYOTA CAMRY V6 THAT WAS LOOSING COOLANT AND WHEN WE REMOVED THE OIL CAP IT HAD A MILKY LOOK TO THE CAP ITSELF. I BOUGHT THE BLUE DEVIL BUT I WANT TO MAKE SURE I DO IT CORRECTLY. I KNOW I HAVE TO LET IT RUN FOR 50 MIN BUT WHAT IF THE CAR STARTS TO RUN HOT WHAT DO I DO THEN?

    1. Shante-

      If the vehicle starts to run hot then you will want to shut it down to prevent any damage to the engine. For best results with BlueDevil, the vehicle should be able to idle the full 50 minutes without overheating or stalling out. If it is unable to do so then it may be too far gone for the product to work as it is designed.

      -BDP

  36. Which of the two products will work best on a 6 cylinder bmw vehicle presenting no water in oil, no oil in coolant and no smoke on tail pipe. Vehicle 3 and 4 cylinder are leaking combustion into coolant system.

    Regards,
    Efrain

    1. Efrain-

      You may use either Head Gasket Sealer. The “Pour N Go” (16 oz./white label) is a less concentrated formula that does not require the removal of the thermostat or a flush of the cooling system prior to use. Whereas the “Mechanic Approved” (32 oz./yellow label) requires both the removal of thermostat and a flush before applying the product; the 32 ounce is the more concentrated formula.

      The product with the yellow label will give you best overall results as long as you can remove the thermostat and flush the system prior to use. With the use of either product, be sure to follow the guidelines for the proper amount to use. Based on your cooling capacity, you will be using 16 ounces either way. I would still use a flushing agent to flush your cooling system prior to using the product to ensure proper results.

      Feel free to contact our tech support team at 888.863.0426 with any further questions.

      -BDP

  37. Hello

    I have a 1997 Ford F350 7.5L V8 gasoline, with water in oil, looks milky, can I use this stuff? and how much?
    Regards
    Francisco

    1. Francisco-

      Yes, you may use the BlueDevil Head Gasket Sealer to remedy the problem at hand. You will need to add 32 ounces of BlueDevil to your Ford.

      For best results, you will want to change the oil before and after the BlueDevil process.

      -BDP

  38. I have antifreeze leaking in my oil, and it’s creamy like should I drain everything and pour the blue devil in I have a 2004 grand prix gtp 3800 series3 engine

  39. I used the mechanic approved Blue Devil Head Gasket Sealer on my 2001 5.3L V8 Silverado and followed the directions on the bottle, but when I did it, I poured it in through the reservoir/overflow instead of through the top radiator hose. Will it still fix my head gasket?

    Thank you

    1. Terry-

      If your vehicle only has a reservoir/overflow rather than a radiator cap, the best way to add BlueDevil is, with the car off and engine cold, disconnecting the top radiator hose and adding the product there. Once it has been added you would reconnect the hose and start the idle from that point.

      However, it has still worked when others have added it through the reservoir.

      Feel free to contact us with any further questions at 888-863-0426.

      Thanks,

      BDP

  40. Hi I have an 97 cadillac deville that run hot after a few miles but I have no water mixing in oil or anything and I changed my thermostat so will blue devil fix my over problem I’m thinking exhaust steam getting in cooling system

    1. Randall-

      You stated that the vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure. We would recommend using the BlueDevil Head Gasket Sealer.

      To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.

      All the Best,

      BDP

    2. 2003 vw diesel With white smoke from the tail pipe. Have replaced the head gasket and had the head reworked. Still has white smoke. I believe the cylinderhas a pin hole due to use of wrong kind of antifreeze. If a hole is in the cylInder wall…….will the blue devil work??????

      1. Owne-

        Yes, we still recommend using the BlueDevil Head Gasket Sealer in this instance. It should stop your loss of antifreeze.

        Feel free to contact our tech support team at 888-863-0426 with any further questions.

        Thank you!

        -BDP

  41. I used your other repair sealer (not the pour and go) on my 6.5L diesel suburban roughly 3,000 miles ago. It worked great until last night when the head gasket very obviously went out again. I’m ASE certified, so would have no problem replacing the gasket, but don’t have the time. Can I use the pour and go sealer even though I’ve already used your full repair sealer and that failed after a few thousand miles? I want to sell this truck as soon as possible, so am really just looking for a quick fix. Thanks!

    1. Mike-

      You could potentially use the BlueDevil Pour-N-Go on your Suburban but you would need to add 2 full bottles due to the larger cooling capacity. However, the Pour-N-Go is a less concentrated formula. We recommend using the “mechanic approved” 32 ounce BlueDevil Head Gasket Sealer again. This would ensure that you get the best results possible.

      -BDP

    1. Antoine-

      White smoke would be an indication that you might have a blown head gasket. If you are actually losing gasoline through the tailpipe then I would have your fuel injectors checked.

      Thanks,

      BDP

  42. I have a 05 dodge van and there is oil in the radiator but no coolant in the oil. Someone told me it was a head gasket issue that heads are blown or cracked that blue devil could fix it but a post here that you replied to says blue devil cant fix oil in coolant. My question is if blue devil is suppose to seal the crack where the oil is coming from why wouldnt it stop oil from seaping into the radiator?

    1. Mandy-

      Unfortunately, BlueDevil is not intended to stop oil from leaking into the cooling system. It will work if coolant/water is leaking into the oil but not the other way around.

      -BDP

      1. Do you know of anything to stop oil from going into the coolant? Should i still use blue devil for the gasket or should i make sure first that there is a crack. I know your not a mechanic but does my symptoms sound like a gasket problem?

        1. Mandy-

          We do not currently manufacture any products that are intended to help remedy the problem you are dealing with.

          We recommend that you have your mechanic examine the head for cracks. If your head is OK, then you have to assume you have a cracked block, and you’re best bet at that point would be to find a used motor.

          Thank you for your question!

          -BDP

  43. I purchased blue devil and used it on my 2002 Chevy Venture all wheel drive since the option to replace my head gasket is to expensive but i still see white smoke and my check engine light is still blinking i followed the procedures but it did’nt work what do i do know?

  44. Hello I was wondering if your product would work on my 1995 Toyota 4Runner. I’m almost positive that the leak is causing coolant to go into my exhaust system. The engine runs sluggish and produces a lot of white smoke. I was wondering how long the product would last to correct the failed seal and if it would work in my given situation?

    1. Daniel-

      Yes, based on your symptoms we do recommend using the BlueDevil Head Gasket Sealer. There would be no possible harm to your engine in using this product. Once the product creates the seal it is permanent.

      Feel free to contact us at 888-863-0426 with any further questions.

      Thank You!

      -BDP

  45. I have 2001 V8 f-150. The bottle I bought says it is good for 4 and 6 cylinder motors. Does that mean I can’t use that bottle on my V8?

    Also when should I change my oil on my truck? Before the blue devil treatment? After? Or before and after?

    Thank you for your time.

    1. Mitch-

      You may still use the BlueDevil Pour N Go but you will need to add 2 bottles for your V8. For best results, your should change the oil before and after the BlueDevil process.

      Thank You!

      -BDP

      1. Must I remove the thermostat in my v8 when using 32oz of Blue Devil? In the pour and go instructions it doesnt say it is necessary while in the 32oz it does. Which instructions do I follow? (4.4l V8)

        Thanks

        1. Naveed-

          Yes, it is a required step for you to remove the thermostat, while using the BlueDevil Head Gasket Sealer (32oz yellow label). The product has a slightly higher concentrated formula than the BlueDevil Pour-N-Go Head Gasket Sealer, and thus, requires a cooling system flush and removal of the thermostat prior to use. Feel free to contact our technical support line at 888-863-0426 with any other questions.

          Thank you!

          -BDP

  46. I have the same oil in cooling problem..mechanic said have a “cracked block”,that is the reason i bought a damn pour and go..now to find out it wont work! when i believed it was made to seal cracked blocks..any opinions on why the oil in coolant? Please and thank you

    1. Ivan-

      Unfortunately, we do not manufacture any products that are intended to stop oil from entering the cooling system. If the water/coolant is going into the oil then the BlueDevil Head Gasket Sealer will work. The only solution for the situation you have described would be to tear the engine down and replace the parts.

      Thank you for your question!

      -BDP

  47. I have a Ford Taurus 2002 with blown head gasket. It smokes bad out the muffler. My mechanic said my motor is basically threw. My car won’t stay cranked up should I still use the blue devil????

    1. Shenierra-

      The vehicle should be able to run for a full 50 mintues in order for BlueDevil to have a shot at working properly. If it will not stay cranked then you may need to take it in to your mechanic.

      Thanks!

      -BDP

  48. My husband was doing our car and it turned off 40 minutes into the idling process. He turned it back on and the smoke started back. Why do you think it turned off and do you think we should try it again?

    1. Arletha-

      Our guess is that you are getting water/coolant leaking into your engine oil. If enough water gets into the fluid oil system it can eventually cause the vehicle to stall out.

      You could potentially retreat the vehicle but we recommend changing the oil before and after the process to ensure best results. Feel free to contact us at 888-863-0426 with any questions.

      Thanks!

      -BDP

  49. I have a blown head gasket in my 2000 chevy impala and im in the process of getting it fix so should i use this product first before i go throw away money or is it too late to use the product..

    1. As long as the vehicle is able to idle for a 50 minute period without stalling out or overheating then you have a good shot at getting the BlueDevil Head Gasket Sealer to work.

      Feel free to contact our tech support team at 888-863-0426 with any questions.

      Thank you!

      -BDP

  50. I have a 1985 sedan deville cadillac 4.1 engine. a mechanic told me that my head gasket is leaking because of oil on top of motor and milky oil cap. It isn’t running hot yet. would yo tell me which one of your products do I use to seal these small leaks

  51. OK I have a 97 jetty it was lEakino oil so the mechanic fixed that he also flushed my cooling system with water now the engine is smoking or steaming by the exhaust manifold he doesn’t know what it is from but I think a blown head I have the pour and gò. Should I try it thank you

    1. Travis-

      You may want to have the vehicle further diagnosed prior to adding any products to the cooling system. There are a number of different issues that could be causing the symptom you have described.

      Thank You!

      -BDP

  52. I have a 2007 dodge charger w 2.7 v6 motor . . . i got a new thermostat bout 2 weeks ago and did a oil change a week ago and yet the water&oil still mixes ‘ if i add the blue devil will i have to get a new oil change ?

  53. Hello Iused your product on my 1994 Cadillac deville it ran the full 50 minutes but I still smell gas and still smokes does this mean the product didn’t work? Should I add more? Please advise thank you.

    1. Brandie-

      The smell of gas really isn’t a symptom of a blown head gasket. Please contact our tech support team at 888-863-0426 so that we may get a little more detail about your vehicle and the symptoms it is experiencing.

      -BDP

  54. Hello again I tried to call your tech line but it is currently closed I was told by a mechanic that it was a blown head gasket that’s supposedly why I had white smoke withthe gas odor and he told me to buy a head gasket sealer I couldn’t find the one he specified so iI bought blue devil since it seemed to have a lot of good reviews and worked I was really praying this would work but doesn’t appear to I drove it today to work I run it on my breaks and my lunch and is still having same symptoms but we did not use the full 32oz bottle only half Iam wondering if maybe i pour the rest in and let it run if maybe then it will work?

    1. Brandie-

      Our tech support line is open Monday – Friday, 8:00 AM – 5:00 PM Eastern Standard Time; you may have just missed us. Please contact us today so that we may walk you through the best steps to take moving forward. We would be happy to assist you in getting the vehicle fixed.

      Thank You!

      -BDP

  55. Hey, I have a 98 mustang v6 & I took it to get a oil change & I was told I had a rear & front seal leak. Will blue devil work? If so, where do I pour it? & the steps to fixing this problem? I need help. Thanks in advance.

    -Munk

  56. i have a 1992 cad seville only 84,000 miles with in the past 2 years had radiator , hoses, thermostat , water pump replaced all normal maintenance we were moving to the desert and did all this due to the heat jsy wanted to make sure all worked well , all was fine till we used the heater coolant level dropped and ive been having to add water/coolant ever since not allot half cup here and there i figured there was air in the system and it would sort out . i see no visible leak , some im wondering if its just air stuck some where or head gasket, dont see any white smoke. im at a lost

    1. John-

      If the coolant level is not dropping at all then it is more likely an air bubble in the system. You could always have it looked by a certified mechanic to help diagnose whether or not there is an issue going on.

      Thank You!

      -BDP

  57. I have a 1996 nissan altima with a blown head gasket will the blue devil pour n go work with my car or should i use the other blue devil product

    1. Steven-

      You may use either Head Gasket Sealer. The “Pour N Go” (16 oz./white label) is a less concentrated formula that does not require the removal of the thermostat or a flush of the cooling system prior to use. Whereas the “Mechanic Approved” (32 oz./yellow label) requires both the removal of thermostat and a flush before applying the product; the 32 ounce is the more concentrated formula.

      The product with the yellow label will give you best overall results as long as you can remove the thermostat and flush the system prior to use. With the use of either product, be sure to follow the guidelines for the proper amount to use. Based on your capacity, you will be using 16 ounces either way.

      Thank You!

      -BDP

      1. I put the 4 bottles in ran for the 50 mins let cool for 3 hours opend the radiator and it looks like it crystalized in the radiator. how can i get the stuff out of my engine

        1. John-

          It is very important to use the proper amount of BlueDevil to ensure the intended results.

          Please contact us at 888-863-0426 so that we may discuss the vehicle and the use of BlueDevil.

          Thank You!

          -BDP

  58. I have a 1998 Chrysler Sebring Convertible and i do have blown heads I tried to pour Blue Devil into the radiator after removing the cap but air is shooting out .how to pour into the radiator

    1. William-

      It sounds like the vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.

      Feel free to contact our tech support at 888-863-0426 with any questions.

      Thanks!

      -BDP

  59. I have. 2993 ford truck 4.6 v8 it has water in the oil and has gotten hot twice but it just got hot for a few seconds each time! Do u think blue devil will still work?!

    1. Brent-

      Yes, as long as the vehicle will be able to idle a full 50 minutes without stalling out or overheating, we recommend using the BlueDevil Head Gasket Sealer. For best results, you should change the engine oil before and after the BlueDevil process.

      Thank You!

      -BDP

  60. hi, i got a 2000 honda civic coupe with a blown head gasket. i noticed it first because it was overheating and all the coolant i had poured in the radiator was gone. Right away i put some water in to make the heat decrease. next day i noticed also that it struggled to start. i didnt start as quick as it used to, but i didnt pay much attention to it. while i was drive on streets it fully overheated every time i stopped at a red light, and i came back down when i started running. i took it home and my dad poured a bottle of k&w permanent sealer. but i guess we didnt follow the correct steps. before having to pay 1500 for the head gasket repair, i would like to try blue devil on my car to see how it goes. my question is. Can i put blue devil in when i already put the k&w sealer? thanks in advance

    1. Brian-

      You should first completely flush your cooling system prior to adding the BlueDevil Head Gasket Sealer. Please contact our tech support team at 888-863-0426 so that we may discuss your Honda and the best way to use BlueDevil to ensure desired results.

      Thanks!

      -BDP

  61. Your product looks like a great “plan A”, and and it seems my car looks like a good candidate, evidently slow coolant leak into the combustion chamber–missing coolant–no drips and no evidence of coolant in the oil, right?
    , My question is if it fails to seal or I have an problem in the future, are there any downsides? Does BlueDevil leave any residue that would make the process of replacing the head gasket any more difficult? Does it permanently and measurably reduce heat transfer in the cooling system?

    1. Daryl-

      You’re right, your vehicle does sound like a great candidate for using the BlueDevil Head Gasket Sealer. The product carries a success rate around 90%.

      If for whatever reason the product is unable to work properly it would not make future repairs any more difficult. The product will not cause any harm or reduce heat transfer within the cooling system.

      Feel free to contact us with any further questions.

      Thank You!

      -BDP

  62. I have 98 Deville running fine as long I stay off the highway when I get on the highway it starts to get hot 220 250 then overheats after 25 miles or so if I use blue devil all I have to do is pour in the product and idle for 50 minutes with cap on or off and do I need to drain coolant first or just pour it in cold thank u

    1. Carl-

      You may use either Head Gasket Sealer. The “Pour N Go” (16 oz./white label) is a less concentrated formula that does not require the removal of the thermostat or a flush of the cooling system prior to use. Whereas the “Mechanic Approved” (32 oz./yellow label) requires both the removal of thermostat and a flush before applying the product; the 32 ounce is the more concentrated formula.

      The product with the yellow label will give you best overall results as long as you can remove the thermostat and flush the system prior to use. With the use of either product, be sure to follow the guidelines for the proper amount to use. Based on your coolant capacity, you will be using 32 ounces with either product. The radiator cap should be on during the 50 minute idle.

      Feel free to contact us at 888-863-0426 with any further questions.

      Thanks!

      -BDP

  63. I have a 2002 Honda Civic LX with over 241,000 miles on it. I started having some cooling problems last year and had my radiator and thermostat replaced. However, my car kept on overheating from time to time – usually if I was idling in heavy traffic on a hot day. It hadn’t happened again last month while driving on the interstate for about 2 hours. My last episode happened three days ago. I was driving and my car just started to slow down and cut off on me. I was able to coast to a safe spot and let it cool down. In about 30 minutes, I was able to start it again and drive home. Once I got home, I let it cool off for a few hours and then checked the coolant fluid and oil levels. The radiator was full and there was coolant in the reservoir and the oil level was fine. Just yesterday, during my regular oil change appointment, I had my coolant system flushed and had them do a compression test on the coolant system to see if there were any leaks. Thank goodness, none were found. The mechanic wanted to check to see if a head gasket was blown but I just didn’t have the money to have to test done yesterday. After reading some of the other comments, I’m thinking that this might be my problem but I haven’t seen any white smoke coming from my car or anything mixed with my oil. If I can find someone to check the head gasket at a minimal fee, do you think it would be worth it using your product or just paying the money to get it fixed by a mechanic? I’m willing to pay up to $1000 to get it fixed since I never had any other major problems with my car in the 13 years that I have had it. I just can’t afford to make car payments at this time. Any recommendations?

    1. Lisa,

      As you were describing the problem with your Civic it is a good possibility that you have a blown head gasket. Even a small leak can cause the problems you’re having without the other symptoms of white smoke or bubbles in the radiator. Some auto parts stores sell a kit to chemically test for a head gasket leak that is inexpensive so it might be worth calling a few in your area and asking.

      BlueDevil Head Gasket Sealer is a great alternative to having a costly head gasket replacement. Since your car has such a small engine and at this point a small leak, you could use BlueDevil Pour-N-Go (available here: http://store.gobdp.com/pour-n-go-head-gasket-sealer-00209/). BlueDevil Pour-N-Go is something you can install yourself in just a few minutes using the directions in the link above. It is guaranteed to seal your head gasket leak!

      If you have any other questions please let us know!
      -BlueDevil Pro

  64. Have 1997 toyota tacoma 4 cyl engine. After it runs about 20/30 minutes starts pumping water outof overflow I have traced it to a leaking head gasket. Is blue devl a fix for this

    1. Kenneth-

      Based on your symptoms we recommend using the BlueDevil Head Gasket Sealer.

      It sounds like your Toyota may be getting combustion/exhaust gases blowing into the cooling system and creating pressure. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.

      Feel free to contact us at 888-863-0426 with any further questions.

      Thank You!

      -BDP

  65. I have a 98 grand marquis v8 and I went to start my car today and it sound like something broke. I know I have a blown head gasket and my heater doesn’t work, what should I do. And I have a bottle of blue devil

    1. Please contact our tech support team at 888-863-0426 (8:00 AM – 5:00 PM Eastern Standard Time) so that we may discuss your vehicle in more detail and be able to better determine if it is a good candidate for using the BlueDevil Head Gasket Sealer.

      Thank You!

      -BDP

  66. I was wondering if it is safe to use Blue Devil in my Motorcycle. It is a 1985 KZ454 LTD. So far I am finding oil in the water, but no water in the oil…..so far.

    1. Patrick-

      Unfortunately, we do not manufacture any products that are intended to stop oil from going into the coolant. Our BlueDevil Head Gasket Sealer will work when water/coolant is entering the oil but not the other way around.

      Thank You!

      -BDP

  67. I have a 94 Chevy Camaro with 146,000 miles coolent goes from full to empty in 5 min after warming up after shut down I can hear it boiling after cooling down and opening its dry no coolent in oil no oil in coolent no smoke from exhaust but overheats severely there’s no coolent leaks except when it overflows from overflow reservoir a friend who is a mechanic said most likely blown head gasket minor but don’t push it fix it ASAP….is this situation fixable with blue devil?

    1. Peter,

      Thanks for your question about your Camaro. The symptoms you are describing do all sound like a blown head gasket. With your car having a larger cooling system and a leak of this size we could recommend using BlueDevil Head Gasket Sealer (available here: http://store.gobdp.com/head-gasket-sealer-38386/?page_context=search&faceted_search=0). All of our products carry a money back guarantee if you purchase them online or from one of our partnering auto parts stores.

  68. So I have been doing my research all day while I was at work today, and decided that once I got off, I would try a bottle of the “Pour and Go”. My 2002 Jeep Liberty 3.7L was smoking like a chimney and the oil looked like chocolate milk, I knew I was screwed! Well I picked it up at AutoZone, flushed my coolant and changed my oil first, then followed the steps on the bottle. So far, the smoke is gone! No rough idle anymore, no check engine light, and I took it on the highway runs like a champ at 70-80 MPH. I’ll update if I have any changes.

  69. I have a 1986 s10. I used the BlueDevil product. After pouring it in and completing the idling process, I let the engine cool off for a bout an hour or so. When I went to top off the radiator with antifreeze as recommended, some anti freeze and possibly some of the BlueDevil product shot out of the radiator. Should I used another bottle of BlueDevil or should I wait a while more and just add the antifreeze?

    1. Jeff-

      You do not need to add more BlueDevil at this point. The BlueDevil Head Gasket Sealer creates a permanent seal during the 50 minute idle. Once the idle is complete and the vehicle has cooled down it will not make any difference whether BlueDevil is left in or not.

      Thank You!

      -BDP

  70. I am just wow’d! Here’s why…

    I only put in 1/3 of the can (I thought there’d be enough room for all of it because prior to I was having to add 1 quart of coolant every 3-4 days), but I guess I didn’t plan it out right (or maybe the engine was still a bit too warm), anyway, after adding 1/3 of the can I popped the cap on, let the engine run about 50 minutes, and I HAVEN’T HAD ANY OVERHEATING ISSUES SINCE! (Also, it’s nice to have the A/C working again.)

    Thank you Blue Devil, you saved me $1900.00!!!!

    ~S. Knight (Salt Lake City, Utah)

  71. 16 oz. blue devil head gasket sealer.On the bottle under instructions it says turn the temp max. and then it says let it idle 50 mins on the normal operating temp. what it means when it says normal operating temp? do we need to put temp from max to cold? normal? or what? or it means let the temp stay on max and idle 50 mins? Thanks.

    1. John-

      By “normal operating temp” we are meaning that it does not overheat. You are right that the engine temperature should be a little lower with the heater on high. However, we still recommend running the heater on high. The product only requires the engine to reach about 150 degrees Fahrenheit in order to gain the benefit.

      Thank You!

      -BDP

  72. I have a 1990 Dodge Ramcharger spitting out the white smoke. The private party who sold me the vehicle told me it was the head gasket. Should I give this a whirl or have someone look it over and tell me exactly what I need? I know they will charge me a couple hundred just to look at the darn thing.

    1. Lonell-

      Based on your description it is possible that you have a blown head gasket. If you have noticed that the vehicle has been losing some coolant/water over a period of time then we definitely recommend using the BlueDevil Head Gasket Sealer.

      Feel free to contact our tech support team at 888-863-0426 with any further questions.

      Thank You!

      -BDP

  73. I just rerplaced Hed, Intake and Plenum Gaskets(intake/Plenum twice). With the Oil Drain plug removed, as I put water in it runs out of the oil drain. Will the Bluedevil work? and for how long?

  74. Sorry. Just got cleaned up and frustrated!

    I just replaced Head/Intake/Plenum gaskets(Intake/Plenum twice). With the Oil Drain plug removed, as I put water in it runs out of the oil drain. Will the Bluedevil work? and for how long?

    1. John-

      It sounds like the vehicle may be losing water too quickly for BlueDevil to be able to work properly. In general, you really shouldn’t be losing more than about 1 quart of water/coolant during an hour run for BlueDevil to have a good shot at working.

      Feel free to contact us at 888-863-0426 (Monday – Friday, 8:00 AM – 5:00 PM EST) with any questions.

      Thank You!

      -BDP

  75. I am about to replace my thermostat for the 4th time. It currently has a failsafe thermostat and after about 4 days from replacement it begins to overheat only during slow down or idle position. No moisture from tail pipe or smoke of any kind. No leaks of any kind. Could it be a blown head gasket and if it isn’t would it hurt if I used it any way just in case?

    1. Donna-

      It does not sound like a blown head gasket based on your description. You may want to have the system bled down in case of any air bubbles stuck within the cooling system.

      It wouldn’t be a bad idea to have a certified mechanic take a look at the vehicle and come up with a diagnosis. Once a diagnosis is made you will be able to tackle the problem.

      Thanks!

      -BDP

  76. i have a 2001 dodge neon..i replaced the head gasket a couple years ago and the thermostat as well. my car runs decent and has power but seems to get warmer than it should and if i drive it for a period of time and then kill the engine, u can hear the water bubbling in the overflow. do u think this product would work for me? if so which should i use? thanks in advance..any suggestions are welcome

    1. Charity-

      Please contact our technical support line at 888-863-0426, so that we can better understand the vehicle’s symptoms and give you our recommendation.

      Thank you!

      -BDP

  77. I have a 2006 Hyundai . My car over heated and took it in to shop he fixed the radiator and gave it a oil change. Now my car is running rough. could it be the head gasket? Just a girl trying to figure out whats wrong with my car.

    1. JR-

      Please contact our technical support line at 888-863-0426, so that we can better understand the extent of the repairs on your Hyundai and make a recommendation based on your provided information.

      Thank you!

      -BDP

  78. Hi Blu Devil guys, I have a question for you.

    I have Toyota Avensis 2.0 diesel engine, and it’s diagnosed with exhaust/combustion gases in cooler with chemical tester that changed color from blue to green, since the bubbles are really small and barely visible. I don’t lose a lot of water while driving in town, only when i step on a gas and increase engine workload I start loosing water from reservoir/overflow. When in standby I don’t loose water, and the engine doesn’t overheat, also coolant and oil doesn’t mix since I changed oil and coolant and found no traces of mixing so I can conclude that it’s not big opening in the gasket. I don’t know if it’s the gasket or the head or engine block since opening the engine is also expensive.

    With all this symptoms could I use blue devil, and if yes, how should I apply it since I don’t know on which cylinder is the problem (haven’t tested the compression on cylinders), or I shouldn’t worry since I’m not loosing water when car is working idle and go with the manual?

    Thank you

    1. Sava-

      We do recommend using the BlueDevil Head Gasket Sealer to help repair your Focus.

      Based on your description, it sounds like your vehicle may be getting combustion/exhaust gases blowing into the cooling system and creating pressure. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with a low compression reading. If you are not sure which one that is, you may pull all of the spark plugs and will sometimes notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.

      Feel free to contact our tech support team at 888-863-0426 (Mon – Fri, 8:00 AM – 5:00 PM EST) with any questions.

      Thanks!

      -BDP

  79. Hey I have a 5.0 v8 305 in my 1986 chevy k10. I ordered a 32 ounce bottle of easy pour gasket sealer. Is there any prep work i need to do or do I just pour it in my radiator with my coolant and let it run? And how much sealer should I pour in.

    1. Brandon-

      You will use the full 32oz bottle in your V8 Chevy K10. In terms of prep work, you would remove your thermostat and perform a cooling system flush using BlueDevil Radiator Flush (or comparable flushing agent) prior to adding the product. Feel free to contact our technical support line at 888-863-0426 if you have any other questions.

      Thank you!

      -BDP

  80. I just used B.D. pour n go now since I used it and been here doing the idle step it emitting blue exhuast smoke is this normal??

    1. Gary-

      When you are seeing blue smoke it is an indication that you are burning oil. The BlueDevil Pour N Go does not burn bluish in color, it would look the same as antifreeze (thick white smoke) if it were leaking and burning off through the exhaust.

      Thank You!

      -BDP

  81. My 06 jeep commander is misfiring and has a small head gasket leak into cylinder four. There is no overheating, no white smoke, and we barely lose any coolant. The leak appears to seal after the engine warms up. Would the pour and go be the right option to use?

    1. Erin-

      Yes, the BlueDevil Pour N Go Head Gasket Sealer would be a great solution for stopping the small leak in your Jeep. You should have no problem sealing it with BlueDevil as it sounds like you are catching it very early.

      Thank You!

      -BDP

  82. I have a ford ranger with a head gasket problem, I have been adding water as it runs low, so there is little to no antifreeze left in the coolant system it is almost pure water.

    Should I drain and fill with50/50 mix prior to using your product or just add it to the water?

      1. Thank You,Thank You, Thank You, Thank You….

        I can’t say it enough, I just got back from a test drive after the repair procedure.

        I noticed about 5-10 minute into the idle process, that the rough idle went away, and although I was hopeful when I started, the smooth idle got me really excited.

        After the 50 min idle I decided to order pizza with the money I saved on a full head gasket rebuild, and drove the car down to the pizza place to get it, and the entire time the temp guage didn’t budge, even with me intentionally keeping the revs higher than normal!

        I don’t pretend to know how you guys came up with a chemical alternative to a mechanical rebuild, but I am eternally grateful that you did!

  83. I have a Toyota rav4 with a blown head gasket or cracked head causing oil to get in the cooling system i understand how your product works am I right in thinking this will not work in my case?

    1. Michael-

      You are correct, the BlueDevil Head Gasket Sealer is intended for coolant leaks only. Unfortunately, we do not manufacture a product intended to stop oil leaks from the head gasket.

      Thank you!

      -BDP

    1. Michael-

      We recommend using the proper amount of the BlueDevil Head Gasket Sealer as it will work to stop water from leaking into the engine oil. For best results, you should change the engine oil before and after the BlueDevil process.

      Thank you!

      -BDP

  84. i tried blue devil pour and go today , made sure i went through all of the instructions , 98 malibu didnt run hot the whole hour i left it running ,after that i let it cool for about an hour and a half began running hot 2 minutes after i left home

    1. Jimmy,

      Thanks for your question about your Malibu. Your car may have overheated simply because it had been idling for so long so you may try parking your car, letting it cool completely, then driving again to see if you overheat. This also could be an indication that your thermostat is bad, as they can often be damaged when your car overheats so it may be worth putting a new thermostat in as well.

      Thanks again for your question!
      -BD Auto Pro

  85. my sister’s van is not only billowing smoke, but as I fill the coolant I can watch it pour from the exhaust (mainly the condensation hole on the muffler) and i am at a loss to find a way to get water to stay in the system and therefore get your product to stay in the system. Any suggestions, or is the car too far gone?

    Also it is not getting heat inside van so may not even be getting through the heater core.

    I do know the leak is in cyl 2 and she desperately need this fixed if possible.

    1. Derek,

      Sorry to hear about your sister’s van. Based on your description it sounds like your leak may be too large for BlueDevil Head Gasket Sealer to fix. In your case, we would recommend having the head gasket, or possibly even the motor replaced.

      Thanks again for your question!
      -BD Auto Pro

  86. I nee some help.
    I am a rookie at the car world, which is what caused my problems problem. I have a 2002 Subaru Impreza. As you can imagine I have an head gasket leak. I got me some Blue Devil and poored it into my coolent resivore 4 days ago. I realized that the blue devil probably didnt make it into my system because the resivore doesnt normally feed back into the system- I think. I pulled open the resivore and some… glumpy blue white stuff- that wasnt really sollidish was plooping around the bottom. I assume this was the blue devil, not in the right spot. I cleaned out the devil, but now I dont know what to do.
    Can I stick a new bottle into the actual radiator system? Do I need to wait and see?
    Help please.

    1. Elise-

      If your vehicle only has a reservoir/overflow rather than a radiator cap, instead of pouring BlueDevil through the reservoir/overflow, with the car off and engine cold you should disconnect the top radiator hose and add the product there. Once it has been added reconnect the hose and start the idle from that point.
      Based on what you have done thus far, it would be a good idea to flush the cooling system out first, so that there is nothing in the system that would be potentially clogging or restricting of flow.

      Thank you!

      -BDP

  87. If I have a bad intake and my car got coolant in the spark plug hole and exhaust pressure built up in my overflow tank plus my car jerks and want accelerate over 10 MPH would your product help this??

    1. James-

      Yes, we would recommend using the BlueDevil Head Gasket Sealer in this situation. Based on your description, it sounds like your vehicle may be getting combustion/exhaust gases blowing into the cooling system and creating pressure. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with a low compression reading. If you are not sure which one that is, you may pull all of the spark plugs and will sometimes notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.

      Thank you!

      -BDP

  88. I’ve seen videos online where there is a buildup of BD around cooling channels of the cylinder walls. Would a chemical flush/backflush after the treatment be a good idea or would that potentially diminish the effects of the treatment?

    1. Scott,

      Thanks for your question about BlueDevil products. BlueDevil sealers are safe to stay in the cooling system of your vehicle after the leak is sealed and will not diminish the cooling capacity of your system so a flush is not necessary. BlueDevil forms a chemical weld at the leak point, so once the leak is sealed you could flush your cooling system without affecting the integrity of the seal, but again, is not necessary.

      Thanks for your question!
      -BD Auto Pro

  89. I have a 2005 Nissan Altima 3.5 V6, head gasket blew out on my wife and she drove 30mins on the interstate before safely exiting…the oil on the dipstick is light milky brown, the car will no longer crank up, still spins/fires with a little back kick, but won’t crank (did compression test by filling radiator with water and attempt to crank and the water shoots back out of the radiator) . What can I try to do to get the vehicle to crank so I can use Blue Devil?

    1. Alan,

      Thanks for your question about your Nissan Altima. The last thing you can try is removing the spark plug in the blown cylinder and seeing if that will relieve the pressure in that cylinder and the cooling system enough to allow it to run. If that doesn’t work, then unfortunately your leak is too big for BlueDevil to fix and you will need to replace the head gaskets.

      Thanks again for your question!
      -BD Auto Pro

  90. I have a 2003 dodge neon that has the 2 front freeze plugs leaking. I’m about to use the Blue Devil product. . My question is what does exactly means when u guys said idle for 50 mins?
    Does that includes driving the car too?

    1. Jose-

      Idle means the vehicle is run while sitting still; not being driven. You will simply turn the engine on and allow it to run while sitting still.

      Feel free to contact our tech support team at 888-863-0426 with any questions regarding the use of BlueDevil.

      Thank you!

      -BDP

  91. I dont kno cars My car is smoking and I put antifreeze in its just bubbles and I think it drains out but see no leak and my oil dip stick has milky substance on it 1984 grand prix will product work

    1. Mr. Moore-

      Thank you for asking about your Grand Prix. Based on your description, it sounds like you are experiencing a blown head gasket. We recommend using the BlueDevil Head Gasket Sealer, found here http://store.gobdp.com/head-gasket-sealer-38386/ . As long as you are not losing water/coolant too quickly and the vehicle will idle for a full 50 minutes, without overheating or stalling out, you would be a good candidate for the product. You will want to change your oil before and after the BlueDevil process. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

    1. Roger-

      Thank you for asking about your Case Tractor. Yes, the BlueDevil Head Gasket Sealer is compatible and can be used in diesel engines. As long as you are not losing water/coolant too quickly and the tractor will idle for a full 50 minutes, without overheating or stalling out, you should be able to see some good results from the product.

      Thank you!

      -BDP

  92. I have a 03 Cadillac cts. recently I started the car to find oil mixed in the radiator. I’m in the process of flushing it out. An thinking of buying your product. do I add the blue devil with coolant or water?

    1. Thomas-

      Thank you for asking about your Cadillac cts. The BlueDevil Head Gasket Sealer is intended for water/coolant leaks only. Unfortunately, we do no manufacture a product intended to stop oil getting into the radiator. A hard part repair may be your best option.

      Thank you!

      -BDP

  93. 2011 Subaru outback. What product for bubbling out reservoir. Car keeps burping. Wont overheat ideling only while driving

    1. Roger-

      We recommend using BlueDevil Head Gasket Sealer for your Subaru. It sounds like the vehicle may be getting combustion/exhaust gases blowing into the cooling system and creating pressure. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly. Be sure to follow the guidelines for the proper amount to use based on the size of your cooling system; you will only need 8 – 10 ounces in your Subaru.

      Thank you!

      -BDP

  94. ok 96 chevy has water in the oil so is mine to far gone to use this on it because if it runs for 50 min with oil in the water

    1. Asking-

      As long as you are not losing water/coolant too quickly, you would be a good candidate for the product. Based on your description, we recommend changing your oil before and after the BlueDevil process. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  95. Hey I have a 115 hp 4cyl outboard motor that is getting water into the bottom two cylinders if I put the lower unit into a tank of water will it help my problem and if so what would be the amount of Blue Devil to water ratio should I use.
    Thank you for any help you can give me.

    1. Michael-

      You would be using about 16 oz of the BlueDevil Head Gasket Sealer for your 4 cylinder outboard motor. As long as you are not losing water/coolant too quickly, and the engine will idle for a full 50 minutes, without overheating or stalling out, then you would be a good candidate for the product. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  96. Used the Pour and Go on our 2003 PT cruiser. 1st problem, blown electric fan, 2nd, stuck thermostat, after all that over heating apparently the head gasket went. Liquid coming out of the tail pipe. Loss of coolant. Car sounded like a coffee pot. Ongoing overheating problem for months.
    Found Pour and go on a web search. Used as directed, everything is running cool and fine. No loss of fluid, no coffee pot.
    I’ve been in the automotive industry since the early 70’s, and have never found an additive that actually worked for a head gasket problem. This does, don’t let the price put you off, it is definitely well worth it! Average cost of a head gasket replace, 2,000 US! Average cost of a bottle of pour and go, 34.99. You do the math.

    1. William-

      Thank you for the great feedback! We are pleased to hear of the success you’ve had with the product. Once the product seals, it is a permanent seal, so you should be good to go at this point!

      Thank you!

      -BDP

    1. Rick-

      Typically if the engine has to be shut off prior to the complete 50 minute idle it is an indication that the blown head gasket is too extreme for what BlueDevil is intended to fix. This usually means the vehicle will require a hard part repair.

      Thank you!

      -BDP

  97. Hi, does the coolant need to be drained after using the pour and go? i am not mechanically inclined, and im hoping to not have to take it to a mechanic. The oil change guy said i had a gasket leak! thanks you so much

  98. I have a very slow leak somewhere from the cooling system, not any of the hoses or radiator (I pressure tested it), but I am unsure if it is the head gasket (no oil in the coolant and no milkiness in the oil) or if it might actually be leaking somewhere else in the engine. Will this product still work if the leak is elsewhere in the cooling system?

    1. Morgan-

      Thank you for your question. The BlueDevil Head Gasket Sealer would treat leaks for blown head gaskets, warped/cracked heads, leaking heater cores, leaking freeze plugs, leaking radiators and blocks. If you are unsure where the leak is coming from, you may want to have the vehicle properly diagnosed by a certified ASE mechanic to give yourself a better idea of how to treat it. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  99. There is no coolant in my oil, I’m not loosing coolant but I notice pressure in my radiator will blue devil work on my vehicle. I notice the temperature goes up when I’m driving in the freeway.

    1. Alberto-

      It sounds like the vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly. Be sure to follow the guidelines for the proper amount to use based on the size of your cooling system.

      Thank you!

      -BDP

  100. Hi, I have Cadillac Deville with Northstar 8 cylinder engine. I start overheating after 2-3 miles. My mechanic told me that head gasket blown. I am thinking of using yellow blue devil head gasket sealer. Will it work in Cadillac Deville 8 cylinder engine? How do I add it to engine? Please explain whole procedure?

    1. Monika-

      Yes, the BlueDevil Head Gasket Sealer is compatible with your Cadillac Deville. If your vehicle only has a reservoir/overflow rather than a radiator cap, instead of pouring it through the reservoir/overflow, with the car off and engine cold you should disconnect the top radiator hose and add the product there. Once it has been added reconnect the hose and start the idle from that point. The directions are listed in the following link, http://store.gobdp.com/head-gasket-sealer-directions/ . Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  101. The description is pretty self explanatory, but do you need to flush the radiator first before doing this? Asking around I’ve heard different things.

  102. I have a 2002 Hyundai Accent with a 1.5L and for a few months coming, I noticed that the overflow reservoir was always overfilled and had to put more water in the radiator. I noticed one day that with the radiator cap off I let the engine reach operating temperature and noticed that the water inside the radiator was bubbling. It got worst when I accelerated the engine the air bubbles got worst. Just this past weekend I after I have just about replaced everything inside the engine compartment for the exception of the entire engine, I removed the valve cover and found the oil to be milky in texture. I will assume that, that is water mixed with the oil.
    My question if I used Blue Devil in my 2002 Accent should I remove the milky oil with filter and replace with new oil and filter? I what to get rid of the car it has 106,000 miles on it and I need something newer and better.
    I just want this car to last a few months until I get a new one. I already had to replace the head gasket before the timing belt broke and it bent an exhaust valve on the #4 cylinder. I really do not want to go through a full teardown again if I can avoid it. You folk think your product will work, I will take the chance and buy it.
    Thank you

    1. Jose-

      Thank you for asking about your Hyundai Accent. It sounds like the vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure.  We would recommend using the BlueDevil Head Gasket Sealer.  To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading.  Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.
      If you have water/coolant getting into the oil, we recommend changing the oil before and after the BlueDevil process. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

    1. Charles-

      You may still flush the system prior to adding BlueDevil Pour N Go Head Gasket Sealer. If you use just plain water then after the 50 minute idle you should shut the engine off and allow it to cool for at least 2 hours; once the engine has cooled you may drain the system to add your factory recommended antifreeze.

      Thank you!

      -BDP

  103. I have a 99 oldsmobile alero. .using this product do we need to remove the thermostate or block and line before use? Os just simply follow instructions on the bottle? Thanks for your time!!

  104. Just saved $4,800 thanks to Blue Devil. Blew a head gasket on my 2000 Jag XKR, used the Blue Devil 32 ounce sealant, followed instructions to the letter, after idling for 50 min I let engine cool down then took out for a spin. There was little smoke coming out of pipes and after about 25 miles of driving none at all. More importantly car did not heat up. I’ve since put on 100 miles of freeway/city driving with no heat ups and no lost fluid. Product is amazing!!! A $5000 repair job cost me $200 after changing out plugs and oil which I recommend, Thank you Blue Devil!!!! Amazing Results

    1. Steven-

      We are glad to hear of the success you have had with the BlueDevil Head Gasket Sealer! Once the product seals, it would be a permanent seal, so you should be good to go at this point.

      Thank you!

      -BDP

  105. I bought a 2000 bmw with water in the oil and it was blowing coolant and smoke out of the muffler. Used this stuff and it worked great. Just followed the instructions and changed the spark plugs and it’s good to go, been driving every day with no problems.

    1. Josh-

      We appreciate your feedback! It is great to hear of the success you have had with the product. Once the product seals, it would be a permanent seal, so you should be good to go at this point.

      Thank you!

      -BDP

  106. I have here a 2005 Chrysler Town and Country with a 6 cylinder engine. I’ve replaced the radiator (crack at top hose output), water pump (leaking out weep hole) about 1 month ago. I thought my problems was solved, but I am still loosing coolant (about half a gallon per 6 miles). I’ve also replaced the thermostat, thermostat housing, top radiator hose, radiator cap,
    I’ve done a block test for combustion and came back clean. Did an oil change last week and looked fine. No water coming from the tailpipe. I’ve done a compression test on the radiator at 15 psi for an hour at 2000 rpm’s and it held steady the hole time.
    Nevertheless I must be losing it while driving because I have been putting 4×4 sheets of cardboard under the van every time I park it and have never seen it leak. My last hunch is the heater core. Although I never smell any clakeoolant and it does not appear to be leaking inside or out. Perhaps it’s steaming out somewhere and not actually leaking.

    At this point, I have ordered the BlueDevil Head Gasket Sealer #38386 32oz (yellow label) and the BlueDevil Flush.
    I have read just about every comment on the thread so I already know when using this one I have to pull the thermostat and flush the system fist. Since I have a normal radiator, I will be pouring it down there.

    My question is, how much of the 32 ounce containing will I need to use for my vehicle. My vehicle has a coolant capacity of 13.36 qt. (12.64L).

    Best Regards,
    Jeff

    1. Jeff-

      Thank you for asking about your Chrysler Town and Country. You will be using about 16 oz. of the product for your vehicle, so about half of the 32 oz. bottle. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  107. I did not pull the thermostat and I had to pour the sealer in the pressure tank, as I don’t have a radiator cap. will it be ok

    1. Danny-

      If your vehicle only has a reservoir/overflow rather than a radiator cap, instead of pouring it through the reservoir/overflow, with the car off and engine cold you should disconnect the top radiator hose and add the product there (it may be added into the hose or through the opening).  Once it has been added reconnect the hose and start the idle from that point. Please contact our technical support line at 888-863-0426 so that we can get a better understanding of your vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

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