How to Fix an Oil Leak

how to fix an oil leakOil leaks in your car or truck can often go unnoticed.  Unless you like to regularly look under the hood, or crawl under your car, oil leaks can often sneak up on you.  For most of us, we notice an oil leak when we start to smell it burning or we start to see puddles under our vehicle after it has been parked for a while.  The problem is, once you’ve got a leak that is causing drips or puddles, you have a pretty serious problem.

If you do your own maintenance or oil changes then you probably spend enough time under the hood to catch oil leaks before they get to be a real problem.  If you have a trusted mechanic that does your work for you, hopefully they are doing a quick inspection every time you have your car in with them to make sure you don’t have any leaks starting.  Even if you trust your mechanic it might be worth taking a quick look around your car every time you get the oil changed.

The best way to do an inspection for oil leaks is to do one from the top and one from the bottom of your engine.  Start by popping the hood and taking a look around.  If you have a newer car, chances are there is some plastic covers you’ll have to remove to see everything you need to see.  Make sure you look around the top of your engine and just below the valve covers.  You should also check around the front of your engine, near the pulleys and the timing cover if your engine has one.  Next, secure your vehicle well, then crawl underneath and look for more leaks.  Start by looking as low as you can on your vehicle for drops, leaks or shiny spots where oil has been leaking.  If you find a leak, go up from there to find the gasket or seal the oil is coming from.

In doing these regular inspections, you can help catch an oil leak before it becomes a problem and starts leaving puddles on your driveway.  Once you’ve found the leak, the next step is to figure out how to fix an oil leak.  You have an oil leak because there are different components in your engine that needs to be bolted together and shafts that need to exit the engine block.  Each shaft, like your crankshaft or cam shaft, has an oil seal around it, and each component that is attached has a gasket on it to seal the oil inside your engine.  As shafts spin, components shift, and temperatures swing from below freezing to hundreds of degrees, these seals and gaskets can start to deteriorate, crack, shift, or tear.  These problems can allow oil to start to leak.  Usually, this is a slow process and the leak starts out as a seep that can be caught during your inspections.

One of the ways you can fix an oil leak is by replacing the worn out seal or broken gasket.  When it comes to replacing gaskets, you have to start by unbolting the two components the gasket is in between.  To replace a seal, you often times have to remove a significant amount of other equipment like timing gears or pulleys.  Replacing these worn seals or gaskets can often times require a significant amount of time and energy even though the parts themselves are relatively inexpensive.  Many mechanics will put in a new seal or gasket any time they are doing work in that area of your engine just because it is so much work to do later.

A second way to fix an oil leak is to use BlueDevil Oil Stop Leak.  Simply add BlueDevil Oil Stop Leak to your engine oil and it will seal you leaks from the inside out.  BlueDevil Oil Stop Leak isn’t a particulate sealant and will not clog or harm anything in your engine.  Instead, it is a liquid seal and gasket conditioner that mixes with your engine oil and will help bring your old seals and gaskets back to their original size and shape sealing the leak in your motor and getting your car back to working like new.

BlueDevil Oil Stop Leak

For more information about BlueDevil Oil Stop Leak, visit our product information page here: Oil Stop Leak

When you’re ready to seal your oil leak the easy way, stop by any of our partnering local auto parts stores to pick up a bottle of BlueDevil today!

  • 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

Pictures provided by:

fix_an_oil_leak.jpg – By Jenny Downing – Licesned By Creative Commons Via Flickr – Original Link

 

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89 responses to “How to Fix an Oil Leak

    1. Lowell-

      The BlueDevil Oil Stop Leak carries a success rate of about 95%. It works very well with synthetic oils. Once the product has been added you can expect to notice results after about 100 miles of driving.

      Thank You!

      -BDP

  1. Hello, I live in Brazil, so I can not buy your products easily. Last time I visited USA, I bought your transmission sealer and had good results on my Ford F100 C6 transmission. I now have a small rear axle leak at the back wheels. I know I should use the Oil stop leak, but as I can not find it here and I still have a closed bottle of transmission sealer, do you think i should try to put it in my differential? I use SAE 90 oil in it. Thanks.

    1. Salvador-

      Yes, you can use the BlueDevil Transmission Sealer to seal the leak from your differential. You only need to use about 1 ounce of BlueDevil per 1 quart of capacity; you most likely will only need a few ounces total.

      Thank You!

      -BDP

  2. Your post gives some very useful information on fixing oil leakage. I was not aware of most of the facts mentioned in this post.Thanks for sharing useful information.

  3. When using your oil sealer with a car that is full of oil do I need to remove some oil to add your product so it’s not over full?

    1. Jeff-

      Yes, you will want to make sure you have enough room for the product. You are only using one oz of the product per quart of oil in the system, so you shouldn’t have to drain much, if any.

      Thank you!

      -BDP

  4. Ok I got one of ur oil stop leak and was wondering if I only use 3 a lil under 3/4 of oil how much should I put n and will it actually work

    1. Terry-

      Unfortunately, we do not manufacture any products that are designed to stop oil loss coming from the head gasket. Our BlueDevil Oil Stop Leak is made to stop leakage from any rubber seal/gasket such as an oil pan gasket, rear main seal, or valve cover gasket.

      Thank you!

      -BDP

  5. I had an oil leak coming from one corner/bolt on my oil pan. I replaced the oil pan gasket two days ago. Oil is still leaking from the same location. Will your product stop a leak in a brand new gasket? I have also changed the valve cover gaskets and oil pressure sensor/switch. So, this is my only leak point.

    1. Jason-

      Based on your description, we would recommend the BlueDevil Oil Stop Leak for your oil pan gasket. As long as you are not losing oil too quickly, you would be a good candidate for the product. You should expect to see results after about 100-200 miles of driving.

      Thank you!

      -BDP

  6. I have an oil leak in a 2004 Mazda Tribute and my mechanic says it is coming from the bottom half of the crank case because the RTV sealer is getting old. The fix is to split the crank case and reseal it, which is expensive. Would your product work?

    1. John-

      Thank you for asking about your Mazda Tribute. Yes, the Oil Stop Leak would be able to seal the leak you have described. You should expect to see results after about 100-200 miles of driving.

      Thank you!

      -BDP

  7. What is the difference between the “Oil Stop Leak” and the “Rear Main Sealer”? I do not know where the oil is leaking in my car and would like to know which product to try first.

    1. Alan-

      The BlueDevil Oil Stop Leak is the universal application and will work for oil pan leaks, rear main leaks, valve seal leaks, etc. Whereas the Rear Main Sealer is specifically formulated for the rear main seal. If you are not 100% sure where the vehicle is leaking or there seem to be multiple leaks, then we recommend using BlueDevil Oil Stop Leak.

      Thank you!

      -BDP

  8. I have an 2000 Nissan Maxima I have an seal leak or an head gasket leak not sure which one but I know it caused coolant to get mix with my engine oil. I was thinking of doing an engine flush and put Mobil 1 synthetic oil after using the blue devil oil leak seal. What’s your take on that?

    1. Roe-

      Thank you for asking about your Nissan Maxima. Are you getting coolant into your oil or oil into the cooling system? Please contact our technical support line at 888-863-0426 so that we can get a better understanding of the situation and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  9. My wife’s 2009 Chrysler Town and Country has developed a small leak from the oil pan seal. The Chrysler T&C does not have a gasket and came from the factory with only RTV sealant. I did a repair a few years ago which required the removal of the oil pan and I made a new seal using black RTV which is now leaking. Will this stop leak product work on a black RTV seal or is it only effective on rubber gasket seals?

    1. Jason-

      Thank you for asking about your wife’s Chrysler Town & Country. The BlueDevil Oil Stop Leak is only intended for the rubber seals/gaskets in the system. Based on your description, unfortunately, either re-using the RTV seal or a hard part repair would be your best option.

      Thank you!

      -BDP

  10. I have an oil leak on the timing chain cover which only has an RTV in it. Is BlueDevil can stop it? If yes, which one?

    Thanks!

  11. I have a 1978 4.1 Chevrolet and have oil leak from the top gasket on the side. Can your product stop the leak permanently. It also boil to much after short distance drive, 24 km. How long can I drive it before it’s fixed

    1. Mojalefa-

      Thank you for asking about your Chevrolet. Yes, the BlueDevil Oil Stop Leak would treat a leaking oil pan gasket. You can expect to see results after about 100-200 miles(160-320 km) of driving .

      Thank you!

      -BDP

  12. Will this product seal a worn piston ring? I put a bottle in my crank case and let it idle for about 2.5 hrs at 2k rpms and it is still smoking and burned through about 3/4 a quart of oil. Maybe the rings are just to damaged?

    1. Levi-

      The BlueDevil Oil Stop Leak is intended for the rubber seals/gaskets in the system. That being said, in order to get the benefit of the product, you would actually need to drive the vehicle. Typically, you should expect to see results after about 100-200 miles of driving. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  13. I bought the Blue Devil Rear Main Sealer put it in my oil. That was about 1 month ago. I drove around with it almost every day, but only short trips of about 5-10 miles.
    A few days ago I brought my car in for service and they did an oil change.

    My question is, should I put another bottle of the sealer back in or is it ok to leave it like this with only the new oil inside the engine?
    I’m just thinking if the stop leak sealer had enough time to do its work because it was only 1 month ago and with short trips.

    1. Bryan-

      Typically with the BlueDevil Rear Main Sealer, you would start to see results after about 100-200 miles of driving. If you still have somewhat of a leak but noticed some kind of improvement, please contact our technical support team at 888-863-0426, so that we can assist you in doing a second application.

      Thank you!

      -BDP

    1. Frank-

      Yes, the BlueDevil Oil Stop Leak would be able to treat the valve cover leak on your Toyota Solara. You should expect to see results after about 100-200 miles of driving.

      Thank you!

      -BDP

  14. Hi,
    Will Blue devil engine oil stop works if I have already put another engine oil stop of different brand “Liquimolly” in the same engine oil? OR Should I put the new engine oil and then use your product?
    Regards,

    1. Rizwan-

      Based on your description, we recommend changing your engine oil before adding the BlueDevil Oil Stop Leak. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

      1. If my vehicle had an oil leak and I put you product into it to stop the leaks and it does stop the leaks is there a chance if my vehicle overheats that it will make your product not work and my leaks start to leak again? If that makes any sense

        1. Chase-

          If your vehicle is overheating, typically that would be something that is cooling system related and would not have any influence on the fluid oil system. Once the product seals, it would be a permanent seal. Feel free to contact our technical support line at 888-863-0426 with any other questions.

          Thank you!

          -BDP

  15. Hi I have a Saturn Vue I had timing chain work done 8 month ago it is leaking around the same area small drips about a helf dollar size on ground will blue devil oil stop leak work on that type of leak?

  16. Hi . I bought a Nissan Atlas 3.2 l recently for a bargain price , for the reason that its was leaking too much oil under the car . I ve tried all possible products they sell in gas stations , for oil leak stops such as Wynns stop leak , STP stop leak ,STP oil treatment , and manu more , but nothing worked. In a recent trip i went i needed to replace all time the oil in the engine (25 ltrs) only in one day (100 euro just for oil and a lot lot of stress) ..!! Yesterday i realised that one shop sells Bluedevil in my city and i bought the bluedevil stop leak and poored it the same time in the engine.. i drove until now maybe 25-30 km and i think leaked very little oil. . If today is not leaking that much .. then you saved me!! I ll tell you soon

  17. I have a 2013 Chevy equinox. The bleak is coming from my timing cover gasket. Will your product work for this? Just had a fresh oil change and tries another brand but still leaking. Need help….thanks

    REPLY

  18. I was wondering if the leak is so significant that you don’t think. Driving it 100 miles would be safe….. Can I just add oil and leave in gear or what do you suggest? Thanks for your time…..

    1. Adam-

      You can top the system off with oil as needed, however, if you are losing oil too quickly, you would more than likely be losing the product just as quickly, so you wouldn’t be able to keep it in the system long enough in order to get the benefit of using the product. The vehicle would need to be driven in order to see proper results.

      Thank you!

      -BDP

    1. Milk-

      If you are losing oil to the extent that you would be losing your oil capacity before the product was able to seal, you wouldn’t be able to keep the product in the system long enough in order to get the benefit of using it. Typically, you would see improvement after about 100-200 miles of driving. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

        1. Mehrdad-

          You would be able to use either the BlueDevil Oil Stop Leak or the BlueDevil Transmission Sealer for your transfer case leak. The Oil Stop Leak is a universal application and would treat any rubber seal/gasket. Either way, you will be using one oz. of the product per quart of fluid in the system. Feel free to contact our technical support line at 888-863-0426 with any other questions.

          Thank you!

          -BDP

  19. I have 2008 BMW 535xi. I have been told that the oil is mixing with coolant which is producing a white smoke. Would your product work on fixing my cars problem?

    1. Rasched-

      Thank you for asking about your BMW 535xi. Are you getting water into your engine oil or oil into the radiator? Unfortunately, we do not manufacture a product intended for stopping oil getting into the water/coolant. A hard part repair may be your best option.

      Thank you!

      -BDP

  20. Sir/madam

    I have a 2005 mercedes e240 and kawasaki versys 2009 model both of them have the same problem coolant is mixing with oil and when I change oil I observed that oil is very thick and milky color. what product will solve this issue. and how much should I use it. since I live in Qatar is there a distrubutor that I can buy it from.

    1. Emre-

      Thank you for asking about your Mercedes e240 and your Kawasaki Versys. Based on your description, we recommend using the BlueDevil Head Gasket Sealer, which you can order directly on our website(http://store.gobdp.com/products/). With both vehicles, you would want to change the oil before and after the BlueDevil process. Be sure to follow the cooling system capacity table on the back of the bottle to ensure the correct amount of product is used in your installations.

      Thank you!

      -BDP

  21. I just purchased a 2004 Nissan 350z with only 115,000 miles . It has leaky valve covers and also I know that some of the spark plug tube seals are leaking . The number# 5 solenoid going to the plug was oil fowled out . I am told the way these seals are made in to the valve cover ya have to replace the valve cover which is quite expensive not mentioning all the work involved . I hope your “Blue Devil Oil Stop Leak” product will work . Also is it best to change oil before using product ? The oil looks fairly clean… Also is it best to drive highway non stop for a few hours or better to use city stop & go at red lights ? Is it best to do at one time drive or over several days …. My gut feeling says it’s best to do all at once and take a long drive to the beach & back which is 1hr 20 minuets each way on the coastal route hwy. 98 to St. George Island …

    1. George-

      Thank you for asking about your Nissan 350z. Based on your description, we recommend using the BlueDevil Oil Stop Leak (http://store.gobdp.com/oil-stop-leak-49499/) for your valve cover leak. Unless you are due for an oil change within the next 300 miles or so, you would be fine to add the product to your existing oil and the product can stay in the oil for the life of the oil. You should expect to see results after about 100-200 miles of driving. It does not have to be a continuous drive, however, that would give you the quickest results. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

    1. Lakeshia-

      No, you do not have to drive 100 miles the day you put the BlueDevil Oil Stop Leak in the system. It does not have to be a continuous drive. You are fine to drive the vehicle like you normally would. It would just be around 100 miles or so before you would start to see improvement.

      Thank you!

      -BDP

  22. Is it okay to use the BlueDevil Oil Stop Leak in my Ford F-350 turbo Diesel engine? If I have used other stop leak products, do I have to drain all oil out or can the BlueDevil Oil Stop Leak just be added in?

  23. I added Blue Devil to my ’05 Saturn Ion that was having a small, annoying leak from somewhere during its last oil change.
    I cleaned the leaked oil off the underneath side of the engine during the oil change.
    And five hundred miles later the leak has stopped!
    So far, I am very pleased with the results!

    1. Tim-

      That is excellent to hear! 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

  24. I have an small amount of oil leaking from the jug seal on a 1983 suzuki twin motorcycle engine do you think the blue devil will help stop that????? I figured from what i have read about an ounce and a half should be plenty just wondering if it has been used in this way before??????

      1. I will admit I was skeptical when buying this product but it did in fact stop the leak at my jug seal when other products failed. I for one would say that blue devil will do as advertised I give it a big thumbs up. It may cost a little more than other products but the results speak for themselves. THANKS BLUE DEVIL…………………….

  25. I found out I have a very small leak from the valve cover gasket in my car. I can’t afford the costly repair at this time. Will this work in with my oil to stop my kind of leak? And for how long? One more. Also, i need an oil change, if i put this in before my oil change, do i put in another 1-2 oz oz after my oil change? Or will that one treatment be enough?

    1. Tim-

      Yes, BlueDevil Oil Stop Leak is 100% safe to use in vehicles equipped with Turbos. The product does not harden or thicken and therefore poses no risk to the engine or any of its components.

      Thank you!

      -BDP

      1. Well ty very much for the quick reply. I will update on the results. Btw, i will be adding stop leak to a new oil change. Will I have to change oil as soon as leak stops?

        1. Tim-

          The product can stay in the oil for the life of the oil, so you do not need to change the oil immediately after results are achieved. We look forward to your update.

          Thank you!

          -BDP

  26. Hello,

    How long can I drive with the BlueDevil Oil Stop Leak product inside the engine. Can I still drive the car for a few more months until my next oil change or do I need to change the oil once the fix is done.

    Also, I’m driving a standard – manual car (Subaru impreza 2007); would going with more RPM affect the product performance if the engine goes a little bit “hotter”

    Please let me know what’s your advise.

    Thank you !

    1. Bob-

      Thank you for asking about your Subaru Impreza. The BlueDevil Oil Stop Leak can stay in the oil for the life of the oil, so it does not have to be changed out immediately after results are achieved. Driving the vehicle at a higher RPM would not affect the product’s ability to seal.

      Thank you!

      -BDP

  27. I have been told that I have a back seal leak and the differential leak.will your product work on this 2000 chevy s10 ?

  28. Once I apply Blue Devil Stop Leak to my oil, is it necessary to continue to use it at each oil change?

    1. John-

      Once the BlueDevil Oil Stop Leak seals the leak, it would be a permanent seal. It is not the kind of thing you would have to add with every oil change. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  29. Hi, I have an Honda civic 2000 how much I need to put of your oil leak sealer in my engine, I have an oil leak under my engine I’m losing almost 3 table spoon for the whole night

    1. Dheng-

      Thank you for asking about your Honda Civic. One bottle of the BlueDevil Oil Stop Leak will treat 4-6 quarts of oil, so you would be using the entire 8 oz. bottle. You should expect to see results after about 100-200 miles of driving.

      Thank you!

      -BDP

    1. Lala-

      Yes, the BlueDevil Oil Stop Leak is a universal application and would treat an oil pan gasket, valve cover seal, rear main seal, etc. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

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