Diesel Head Gasket Repair

#driveyourlife

Diesel Head GasketDiesel engines can be more prone to head gasket failure than other types of engines.  Diesel head gasket repair can also be more complicated that other head gasket repairs due to the complexity of a diesel engine and the extra work involved in the repair.  Diesel head gasket repair also often has to be done specifically at a specialty diesel engine shop or dealership which can charge higher labor rates which also will add to the cost and complexity of the job.

Diesel engines can blow a head gasket just like a gasoline engine.  Diesel engines also have higher combustion pressures during normal operation so a diesel engine head gasket leads a much more difficult life.  A gasoline engine relies on a spark to ignite the fuel-air mixture so the pressures and temperatures are limited.  If they get too high, the fuel/air mixture ignites on its own, called knocking and can cause damage to the head gasket.  On the other hand, a diesel engine operates because the intake air charge is so hot that when the fuel is injected into the cylinder it combusts due to the high heat so no spark is needed.

To make sure the air charge is heated enough to run, some diesel vehicles will utilize glow plugs or intake air heaters during startup or cold weather.  The one thing every diesel engine does to help heat up the intake air charge is to have a relatively high compression ratio.  The more the air is compressed by the piston, the hotter it will get so most diesel engines have compression ratios at least about 15:1 but sometimes upwards of 20:1!  On top of these high compression ratios, many diesel motors have turbo charges adding even more pressure.  Once all this air is stuffed into a tiny combustion chamber, pressures are already extremely high putting lots of stress on the head gasket.  Once you add the fuel and it ignites, pressure skyrocket up to as much as 2000 PSI or higher!

These high pressures put lots of stress on the head gasket in your diesel motor.  Most diesel motors are designed to last for lots of miles since they are usually relatively low revving engines due to the longer stroke.  To help make sure the head gaskets last as long as the rest of the motor, many diesel engine manufacturers have added an increased number of head bolts or used exotic materials in their head gaskets to help them last longer, but many head gaskets will fail on diesel engines even with normal use.

Due to the complexity of a Diesel engine, head gasket replacements can often be expensive jobs.  The job is often more complicated due to the extra equipment on diesel engines like the high-pressure injection pump and turbocharger, and the mechanics completing the job will often charge more for their services.

In order to avoid paying these high costs for replacing your diesel head gasket, consider repairing your head gasket instead.  BlueDevil Head Gasket Sealer is a non-particulate sealing agent that you can add to your vehicle’s cooling system.  This sealing agent will bond to your current head gasket at the leak point until the leak is permanently sealed stopping your head gasket leak and keeping your engine running.  BlueDevil Head Gasket Sealer can hold up to the high pressures in your diesel engine and keep it running properly.

For more information about BlueDevil Head Gasket Sealer, visit our product information page here: BlueDevil Head Gasket Sealer.

You can also purchase BlueDevil Head Gasket Sealer at any of our partnering local auto parts stores like:

  • AutoZone
  • Advance Auto Parts
  • Bennett Auto Supply
  • CarQuest Auto Parts
  • NAPA Auto Parts
  • O’Reilly Auto Parts
  • Pep Boys
  • Fast Track
  • Bumper to Bumper Auto Parts Specialists
  • S&E Quick Lube Distributer
  • DYK Automotive
  • Fisher Auto Parts stores
  • Auto Plus Auto Parts stores
  • Hovis Auto & Truck Supply stores
  • Salvo Auto Parts
  • Advantage Auto Stores
  • Genuine Auto Parts stores
  • Bond Auto Parts stores
  • Tidewater Fleet Supply
  • Bumper to Bumper Auto Parts
  • Any Part Auto Parts
  • Consumer Auto Parts

Pictures Provided By:

diesel_head_gasket.jpg – By JBromley – Licensed by Getty Images – Original Link

93 Comments

  1. Len on June 22, 2017 at 10:12 pm

    Hi.will bluedevil seal a water pump leak there isno heating problem .water seams to dreap from the pump .

    • BlueDevil Pro on June 23, 2017 at 8:06 am

      Len-

      Unfortunately, we do not manufacture a product intended to stop water pump leaks. A hard part repair may be your best option.

      Thank you!

      -BDP

    • Ben C on July 14, 2020 at 6:51 pm

      I have a 2000 Isuzu FTR truck with a 7.8 Isuzu 6 cylinders inline engine consuming a bit of coolant through the head gasket daily(like half a gallon after 10 or 12 hours using it).
      Does this product work for this type of problem?
      How much product should I use for this engine?
      Should I put it straight up on the radiator after cooling down? Or how do I apply it?
      Thanks!

      • BlueDevil Pro on July 15, 2020 at 11:51 am

        Ben-

        Yes, the BlueDevil Head Gasket Sealer would be able to seal the type of leak you’ve described. As we are unable to look up the cooling system capacity for your vehicle, there is a cooling system capacity table on the back of the bottle, below where the directions are, which would show you how much product to use for your cooling system. 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; do not pour it into the reservoir. It may be added into the hose or the opening on the radiator. Once BlueDevil has been added, reconnect the hose and start the idle from that point.

        Thank you!

        -BDP

    • Justin Royal on January 19, 2021 at 4:06 pm

      Will this work for a 65 case crawlerHave a leak in a cup buster chamber does pressurizing my cooler just got a 188 motor diesel motor same as a 207 diesel

      • BlueDevil Pro on January 20, 2021 at 8:15 am

        Justin-

        Yes, the BlueDevil Head Gasket Sealer is safe and compatible to use on your Case Crawler. As long as the equipment can maintain idle for a full 50 minutes, and you are not losing more than about a quart of water/coolant during that 50 minute run, you would be a good candidate for the product.

        Thank you!

        -BDP

  2. Danny J Rich on October 7, 2017 at 8:43 am

    Also water pumps leak mostly at the bearing first and is not a gasket problem.

  3. Regan on October 11, 2017 at 3:39 pm

    I have an 08 ford 6.4 powerstroke with a bad head gasket that shoves compression into the cooling system and coolant out of the overflow under higher Rpms. Will this product work for my situation?

    • BlueDevil Pro on October 12, 2017 at 10:01 am

      Regan-

      Thank you for asking about your Ford with 6.4 Powerstroke Diesel. Normally on gasoline engines we recommend pulling the spark plug from the affected cylinder to help relieve pressure and allow BlueDevil to create a permanent seal.  However, as you know you would be unable to do this on a diesel engine as it has glow plugs rather than spark plugs.   How quickly is the pressure building up in the cooling system? Please contact our technical support line at 888-863-0426 so that we an get a better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

      • Rafael on May 22, 2019 at 4:29 pm

        I have a bad head gasket on my semi truck ..will this product work for me ???

        • BlueDevil Pro on May 23, 2019 at 8:43 am

          Rafael-

          As long as the semi truck can maintain idle for a full 50 minutes without overheating or stalling out, and you are not losing more than about a quart of water/coolant during that 50 minute run, you would be a good candidate for the BlueDevil Head Gasket Sealer. Be sure to follow the cooling system capacity table on the back of the bottle to ensure the proper amount of product is used.

          Thank you!

          -BDP

      • Jeremy Howard on July 21, 2020 at 6:02 am

        I have a 2001 Detroit 12.7 in a commercial truck with a seaping externally at back of head. Will this potentially solve my issue?

        • BlueDevil Pro on July 21, 2020 at 9:17 am

          Jeremy-

          Based on your description, you would be a good candidate for the BlueDevil Head Gasket Sealer. The product is intended for leaks that are seeping or lightly dripping. There is a cooling system capacity table on the back of the bottle, which would show you how much of the product to use for your vehicle. Feel free to contact our technical support line at 888-863-0426 with any other questions.

          Thank you!

          -BDP

    • Landon on January 7, 2018 at 12:08 pm

      Did it work??

      • BlueDevil Pro on January 8, 2018 at 9:42 am

        Landon-

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

        Thank you!

        -BDP

      • Dan on April 5, 2019 at 12:30 am

        It worked for me. 6.4 was burping coolant left and right. No more. Follow instructions to a T.

        • BlueDevil Pro on April 5, 2019 at 8:45 am

          Dan-

          We are glad to hear the BlueDevil Head Gasket Sealer worked for you! Once the product seals, it would be a permanent seal, so you should be good to go at this point. We appreciate your feedback!

          Thank you!

          -BDP

  4. John Reilly on January 18, 2018 at 2:01 pm

    Would like to know if this product would work on a 08 F-250 6.4 diesel.

    • BlueDevil Pro on January 18, 2018 at 3:08 pm

      John-

      BlueDevil Head Gasket Sealer (https://store.gobdp.com/head-gasket-sealer-38386/) works well in diesel engines. We have had a lot of success in using it in diesel trucks in the past. Based on the cooling capacity, you will need to add 1.5 bottles of BlueDevil for a proper treatment.

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

      Thank you!

      -BDP

    • Shannon Daulton on August 9, 2020 at 11:36 am

      I have a 2014 semi with Mx 13 paccar engine system holds 12 gallons. It’s putting exhaust pressure into system is what Pete told me and forcing coolant out of overflow. Will this work and do I need the pour and go or the 3 day process with draining and removing thermostat?

      • BlueDevil Pro on August 10, 2020 at 8:50 am

        Shannon-

        As long as the vehicle will maintain idle for a full 50 minutes without overheating or stalling out, and you’re not losing more than about a quart of water/coolant during that 50 minute run, you would be a good candidate for the BlueDevil Head Gasket Sealer. You may use either of the Head Gasket Sealers or the Head Gasket Repair. The Pour N Go Head Gasket Sealer (http://store.gobdp.com/pour-n-go-head-gasket-sealer-00209/) is an easy to use, less concentrated formula that does not require the removal of the thermostat or a flush of the cooling system prior to use. BlueDevil Head Gasket Repair (https://gobdp.com/product/head-gasket-repair/) is also an easy to use product that is 2x more concentrated than the BlueDevil Pour N Go Head Gasket Sealer. Whereas the “Mechanic Approved” (http://store.gobdp.com/head-gasket-sealer-38386/) requires both the removal of the 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” Head Gasket Sealer or Head Gasket Repair. The products may be added with fresh antifreeze or water. Based on your cooling capacity, you should apply 3.5 quarts of BlueDevil.

        Thank you!

        -BDP

  5. Ronald Kuhaneck on February 11, 2018 at 11:56 am

    Hi I was wondering in seeing if this would work in my 2007 dodge 5.7 cummins and how much I’d need to get

  6. Tim on February 13, 2018 at 5:54 pm

    I have a 05 2500hd lly 6.6l how much would I need ? Also will this product work for my truck??

    • BlueDevil Pro on February 14, 2018 at 8:57 am

      Tim-

      Thank you for asking about your Chevrolet Silverado 2500HD. Based on the capacity table, you would need 1.5 quarts of the BlueDevil Head Gasket Sealer (https://store.gobdp.com/head-gasket-sealer-38386/), so 48 ounces total. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

      • Cody on June 16, 2018 at 8:18 pm

        Be the same on 2001 chevy 6.6 lb7?

        • BlueDevil Pro on June 18, 2018 at 8:49 am

          Cody-

          Yes, it appears you would be using approximately 1.5 quarts of the BlueDevil Head Gasket Sealer for your Chevy 6.6L Diesel. Feel free to contact our technical support line at 888-863-0426 with any other questions.

          Thank you!

          -BDP

          • Zach Harwood on June 4, 2019 at 9:58 pm

            How much would I need for 2002 dodge 5.9 Cummins? Will it help not using much coolant but lotta white smoke when I let off pedal to slow dow



          • BlueDevil Pro on June 5, 2019 at 10:12 am

            Zach-

            Thank you for asking about your Dodge. Based on what we were able to look up, it appears the cooling system holds about 24.3 quarts(approximately 6 gallons). You would need 1.5 quarts of the BlueDevil Head Gasket Sealer to properly treat the system. Feel free to contact our technical support line at 888-863-0426 with any other questions.

            Thank you!

            -BDP



    • Justin Lowder on October 16, 2018 at 8:18 pm

      Did it work on the 6.6?

      • BlueDevil Pro on October 17, 2018 at 8:58 am

        Justin-

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

        Thank you!

        -BDP

      • Robert Chapman on April 1, 2019 at 3:34 pm

        Does it work? Does it mess anything else in the cooling system up, such as the water pum

        • BlueDevil Pro on April 2, 2019 at 8:39 am

          Robert-

          Using the BlueDevil Head Gasket Sealer would not adversely affect the water pump. Feel free to contact our technical support line at 888-863-0426 with any other questions.

          Thank you!

          -BDP

  7. alberto perez on February 27, 2018 at 7:59 pm

    Will it work in a detroit 11.1 engine??…how much do i need….?? Thanks…

    • BlueDevil Pro on February 28, 2018 at 8:53 am

      Alberto-

      Yes, the BlueDevil Head Gasket Sealer (https://store.gobdp.com/head-gasket-sealer-38386/) is safe and compatible to use on your Detroit 11.1 engine. There is a cooling system capacity table on the back of the bottle, which would show you how much of the product you would need. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  8. LOPEZ on March 9, 2018 at 6:21 pm

    I have 00 dodge ram 5.9l diesel how much blue devil I need ?

    • BlueDevil Pro on March 12, 2018 at 9:05 am

      Lopez-

      You would need one and a half 32 oz. bottles of the BlueDevil Head Gasket Sealer (https://store.gobdp.com/head-gasket-sealer-38386/) to properly treat your Dodge Ram 5.9L Diesel. You would need to purchase two bottle and then are using one full bottle and half of the second. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  9. Jeremy Whitworth on April 14, 2018 at 10:13 am

    LOL I know previous customers have commented it says to contact customer support so here it goes. I have a 2008 F350 6.4 that at 30 lb of boost compression gases leak into the coolant system causing my coolant to overflow the Degas bottle. I know it’s the head gasket I was going to replace the head gaskets but thought I may give this a shot. The only thing I worry about if plugging up is my oil cooler I do not have EGR coolers anymore. What are your thoughts

    • BlueDevil Pro on April 16, 2018 at 8:51 am

      Jeremy-

      Thank you for asking about your Ford F-350. As long as the vehicle will maintain idle for a full 50 minutes without overheating or stalling out, and you are not losing more than about a quart of water/coolant during that 50 minute run, you would be a great candidate for the BlueDevil Head Gasket Sealer (https://store.gobdp.com/head-gasket-sealer-38386/). The product does not contain any solid or particulate matter, so it is a non-clogging product. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  10. Arynn on June 3, 2018 at 5:54 pm

    I have a 95 Chevy Suburban 2500 with a 6.5 diesel engine. Recently purchased and started rolling white smoke from the exhaust that smells like coolant. Will this product repair my problem? As I just purchased it, I really don’t want to spend a fortune on replacing the head gasket.

  11. Alex on June 28, 2018 at 10:23 pm

    I have a 1991 Mercedes-Benz 350SDL that smokes white on idle after startup. It doesn’t smoke on the freeway or after it warms only on idle. Will this help? I know I need a new engine thermometer and will be replacing soon and doing a coolant flush as well. Thanks for your help!

    • BlueDevil Pro on June 29, 2018 at 9:40 am

      Alex-

      Thank you for asking about your Mercedes-Benz 350SDL. Are you noticing any other symptoms such as a loss of water/coolant or is the vehicle overheating at all? Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  12. Yvonne L S on July 18, 2018 at 2:44 am

    Hi I have a 2003 f250 super duty diesel with a 6.0 engine. I’m unsure if it is a head gasket leak, but everything we see points to that being the problem. Smoke from the exhaust, loss of coolant, just changed radiator, lack of power, sudden condensation in oil cap. I have been told this product works wonders and I will be able to drive my truck 15,000 no problems. I would like to know how much I will need considering I thought it was one bottle and I see you are suggesting 1.5 bottles to some vehicles. Also is it mandatory we remove the thermostat and is keeping the heater on going to be permanent or just for the process?

    • BlueDevil Pro on July 18, 2018 at 10:15 am

      Yvonne-

      Thank you for asking about your Ford F-250 6.0 Turbo Diesel. The cooling system in this vehicle is roughly 7 gallons, so you would need approximately 2 bottles of the BlueDevil Head Gasket Sealer (32 oz. yellow label). Yes, removing the thermostat is a required step in performing the BlueDevil procedure. You will put the heater on, blower on the max, and leave it on for the entire 50 minute idle. You would not need to leave the heater on going forward after the process is completed.

      Thank you!

      -BDP

      • Green on August 30, 2018 at 10:49 pm

        Thermostat is one piece and can’t be removed on 6.0. Any other recommendations

        • BlueDevil Pro on August 31, 2018 at 9:09 am

          Green-

          The best way to get around the thermostat housing is by taking the thermostat 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. The thermostat should remain “open” while BlueDevil circulates through the system. Once the BlueDevil procedure is complete you will need to replace the thermostat.
          Feel free to contact our technical support team at 888-863-0426 with any other questions.

          Thank you!

          -BDP

  13. Kasey lynch on August 8, 2018 at 12:35 am

    I have a 2005 chevy 2500hd duramax with a leaking head gasket. For now it hasn’t overheated but is going through coolant. We have had it checked to verify it is a leak. We tried to use the steel seal because I didn’t realize there were different sealants for diesel an gas. Obviously it didn’t work. What is your recommendation? Should i try this product or will it do more damage.
    Thanks Kasey

    • BlueDevil Pro on August 8, 2018 at 8:48 am

      Kasey-

      Thank you for asking about your Chevy 2500hd Duramax Diesel. 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 during the 50 minute run, you would be a good candidate for the BlueDevil Head Gasket Sealer. We recommend thoroughly flushing the cooling system prior to use, to get rid of any of the contaminants from the product you previously used. Be sure to follow the cooling system capacity table on the back of the bottle to ensure the proper amount of product is used.

      Thank you!

      -BDP

      • Kasey Lynch on August 13, 2018 at 7:53 pm

        Thank you. I didn’t realize this posted so you will probably get another one from me. Sorry about that. Thank you for your advice

        • Joe on August 23, 2018 at 9:20 pm

          Did it fix your Duramax?

          • BlueDevil Pro on August 24, 2018 at 8:32 am

            Joe-

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

            Thank you!

            -BDP



  14. CODY on November 2, 2018 at 8:24 pm

    I have a 2008 F-250 4X4 6.4L D. Im not having any coolant problems (loss or drainage). I have a thunk thunk sound and when you take the oil cap of off while it running have lots of blow out… (blow by I was told)…said it was a head gasket issue…(?) So is there a different or special kind of sealer I need since it is only oil problem so far (lossing about half quart every 3-5 days) and have no oil and water mix so far (no cream sludge). What do YOUR experts say???

    • BlueDevil Pro on November 5, 2018 at 9:13 am

      Cody-

      Thank you for asking about your Ford F-250. The BlueDevil Head Gasket Sealer is only intended for water/coolant leaks. Unfortunately, we do not manufacture a product intended to stop oil loss from the head gasket. A hard part repair may be your best option.

      Thank you!

      -BDP

  15. Dustin on November 2, 2018 at 9:00 pm

    Just curious will it work in a older international bulldozer 6 cylinder diesel

    • BlueDevil Pro on November 5, 2018 at 9:21 am

      Dustin-

      Yes, the BlueDevil Head Gasket Sealer is safe and compatible to use in your International Bulldozer. As long as it will maintain idle for a full 50 minutes, and it is not losing more than about a quart of water/coolant during that 50 minute run, you would be a good candidate for the product. Be sure to follow the cooling system capacity chart on the back of the bottle to ensure the proper amount of product is used.

      Thank you!

      -BDP

  16. John Wallendal on December 13, 2018 at 11:24 pm

    We have Case Magnum 245 tractor 248 hp diesel. Will the head gasket sealer work in this application?
    Small gasket leak present
    8.3 L 6 cylinder
    Compression 17.5:1
    Coolant 24 quarts
    Consolidated Diesel Corp Engine. That was a joint venture between Cummins and Case

    • BlueDevil Pro on December 14, 2018 at 9:05 am

      John-

      Yes, the BlueDevil Head Gasket Sealer (https://store.gobdp.com/head-gasket-sealer-38386/) is safe and compatible for the application you have described. For a 6 gallon system, you would be using 48 oz. of the product, 1 1/2 bottles. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  17. Mark on December 20, 2018 at 11:37 pm

    Will this work on a 6.7 cummins? At shutdown overflow reservoir bubbles, and seems to overflow some during operation. Coolant does not return to radiator.

    • BlueDevil Pro on December 27, 2018 at 9:17 am

      Mark-

      As long as the vehicle will maintain idle for a full 50 minutes, without overheating or stalling out, and you are not losing more than about a quart of coolant during that 50 minute run, you would be a good candidate for the BlueDevil Head Gasket Sealer. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  18. John on January 26, 2019 at 1:13 pm

    2005 6.0 Powerstroke. Looking to try this, adlfter 50 minutes thermostat removed and heater on high. What recommended ?
    Does truck temp need to be at operating temp? Cold? Just idle or high idle?
    Thanks

    • BlueDevil Pro on January 28, 2019 at 9:14 am

      John-

      The process should be started when the engine is cold. Once the 50 minute idle is complete, shut the vehicle off and allow it to cool down. We recommend at least 2 hours of a cool down to get your regular 50/50 mix back in and to re-install the thermostat.

      Thank you!

      -BDP

      • Paul on January 29, 2019 at 10:44 pm

        After the cool down do you need to flush system before putting the 50/50 and tstats back in.

        • BlueDevil Pro on January 30, 2019 at 8:35 am

          Paul-

          It is not necessary to flush the system after the BlueDevil procedure. You may simply drain the system and refill it with your regular 50/50 mix.

          Thank you!

          -BDP

  19. Alanna on April 2, 2019 at 4:32 am

    how much bluedevil do I use for a F350 6.4 diesel?

    • BlueDevil Pro on April 2, 2019 at 9:50 am

      Alanna-

      We would need to know the year of the vehicle in order to look that up for you. Please contact our technical support line at 888-863-0426 for further assistance.

      Thank you!

      -BDP

  20. Bill Welch on June 30, 2019 at 8:23 am

    I have a Ford 1716 diesel tractor with a coolant leak ,have tried silver seal in, it slowed the leak down but still leaks .Its actually looks like it’s leaking between the block and the transmission at the top of the engine block , I am trying to keep from splitting the tractor in half to see if it’s the soft plugs . And it only leaks after it runs for about 5 minutes or builds up pressure. Any information would be appreciated.

    • BlueDevil Pro on July 1, 2019 at 1:21 pm

      Bill-

      Thank you for asking about your Ford Diesel Tractor. As long as the tractor can maintain idle for a full 50 minutes, and you are not losing more than about a quart of water/coolant during that 50 minute run, you would be a good candidate for the BlueDevil Head Gasket Sealer. Being that a different manufacturer’s product was used, you would want to thoroughly flush the cooling system prior to using BlueDevil.

      Thank you!

      -BDP

  21. Sj King on October 28, 2019 at 8:59 pm

    I have a yanmar marine diesel engine 315hp . Is this product ok to use on marine engines?

    • BlueDevil Pro on October 29, 2019 at 9:04 am

      Sj-

      Yes, the BlueDevil Head Gasket Sealer is safe and compatible to use on marine engines. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  22. AL on January 4, 2020 at 4:36 pm

    Will Blue Devil work on my 2015 dodge 6.7 engines how much do I use and do I need to pull the thermostat

    • BlueDevil Pro on January 6, 2020 at 8:48 am

      Al-

      Yes, the BlueDevil Head Gasket Sealer would work your Dodge 6.7L Turbo Diesel. You would need roughly a bottle and a half and yes, you would be removing the thermostat. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  23. Dixie on April 6, 2020 at 7:43 pm

    I have a 2001 peterbilt with a C15 6NZ cat engine would blue devil work to seal the head gasket in my semi?

    • BlueDevil Pro on April 7, 2020 at 8:57 am

      Dixie-

      Yes, the BlueDevil Head Gasket Sealer is safe and compatible to use for the application you’ve described. Be sure to follow the cooling system capacity table on the back of the bottle to ensure the proper amount of product is used.

      Thank you!

      -BDP

  24. Tom on May 11, 2020 at 4:14 am

    Do you have Australia outlet

    • BlueDevil Pro on May 11, 2020 at 10:07 am

      Tom-

      We do not currently have a distributor in Australia, however, our products are available for purchase on our website. We do ship to Australia. Feel free to contact us with any other questions.

      Thank you!

      -BDP

      • Tom on May 11, 2020 at 6:36 pm

        Thanks for that have old Cat D69U with blown head gasket tried lot of different products with no sucess so far

  25. Richard Dreby on July 19, 2020 at 4:16 pm

    I have a coolant head gasket leak on my 250 HP Cummings diesel 2001 marine engine, will this work on this engine?

    • BlueDevil Pro on July 20, 2020 at 9:20 am

      Richard-

      Yes, the BlueDevil Head Gasket Sealer is safe and compatible to use on your engine. As long as you are not losing coolant too quickly, 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

    • David on October 3, 2020 at 9:41 pm

      I think I might have a head gasket leak on an old diesel tractor (c.1960) would this be a potential solution or is there a reason I shouldn’t use this on an engine of that age?

      • BlueDevil Pro on October 5, 2020 at 8:46 am

        David-

        The BlueDevil Head Gasket Sealer is safe and compatible to use on your Diesel Tractor. Be sure to follow the cooling system capacity table, on the back of the bottle, to ensure the proper amount of product is used.

        Thank you!

        -BDP

  26. Branden Hottinger on October 5, 2020 at 11:04 pm

    I have a 2002 Chevy 6.6 LB7 Duramax. The question I have is where do I put the product in cause I don’t have a radiator cap and I don’t know where to put the product in. I really need this to work cause if I take it to the shop it’s gonna be a $3,000 to fix.

    • BlueDevil Pro on October 7, 2020 at 7:57 am

      Branden-

      Thank you for asking about your Chevy. 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; do not pour it into the reservoir. It may be added into the hose or the opening on the radiator. Once BlueDevil has been added, reconnect the hose and start the idle from that point.

      Thank you!

      -BDP

  27. Fernando Cruz on October 15, 2020 at 12:36 pm

    I have a Jeep Liberty CRD Diesel 2.8, it seems to have a head gasket problem, somedays there’s a white smoke, and my reservoir tank every two days gets low. It would work?

    • BlueDevil Pro on October 16, 2020 at 8:44 am

      Fernando-

      Thank you for asking about your Jeep Liberty. Yes, the BlueDevil Head Gasket Sealer is safe to use on Diesel engines. 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; do not pour it into the reservoir. It may be added into the hose or the opening on the radiator. Once BlueDevil has been added, reconnect the hose and start the idle from that point.

      Thank you!

      -BDP

  28. Brian on December 18, 2020 at 3:57 pm

    My 8.3l Cummings has a SCA filter on it. Will it clog my filter?

    • BlueDevil Pro on December 21, 2020 at 8:27 am

      Brian-

      No, the BlueDevil Head Gasket Sealer does not contain any solid or particulate matter, so it would not clog your SCA filter. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  29. Phillip Messer on February 15, 2021 at 5:50 pm

    Have a 2011 6.6 duramax, runs fine but hard to start on a cold morning. Shop where They put a 75 hp tune on it tells me it has a bad head gasket, has lost maybe a quart of coolant in the last two months. Will this product take care of my problem.

    • BlueDevil Pro on February 16, 2021 at 8:44 am

      Phillip-

      Thank you for asking about your Chevy. Based on your description, you would be a good candidate for the BlueDevil Head Gasket Sealer. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  30. Jeremy Langley on February 25, 2021 at 2:24 pm

    I have a 2013 Volvo with the Volvo engine here is the problem it has diesel mixing in with the coolant but the truck is not running hot or anything but it is losing the coolant as well can you tell me what cause that to happen

    • BlueDevil Pro on February 25, 2021 at 2:49 pm

      Jeremy-

      Thank you for asking about your Volvo. If fuel is getting into the coolant, it would mean the injector cups are cracked. It would also mean you have a cracked head, which would explain the loss of coolant you are experiencing, as well. Unfortunately, a hard part repair may be your best option.

      Thank you!

      -BDP

  31. Mike Mattice on March 4, 2021 at 11:17 pm

    Hi, I have a 2006 F350 6.0L diesel. I have a small head gasket leak, causing overpressure in my coolant reservoir, especially under load. I am convinced your product will work for me but I am worried about plugging my oil cooler. Should I be concerned??

    • BlueDevil Pro on March 5, 2021 at 8:28 am

      Mike-

      Thank you for asking about your Ford F-350. The BlueDevil Head Gasket Sealer does not contain any solid or particulate matter, so it is a non-clogging product. As long as the vehicle will maintain idle for the full 50 minutes, without overheating or stalling out, and you are not losing more than about a quart of water/coolant during that 50 minute run, you would be a good candidate for the product. Be sure to follow the cooling system capacity table on the back of the bottle to ensure the proper amount of product is used.

      Thank you!

      -BDP

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