BlueDevil Products49499 Oil Stop Leak - 8 Ounce

I have a rear main seal leak in my '06 Honda Ridgeline. It started about 15K miles ago roughly. I put in the Blue Devil Rear Main sealant first and it worked for a while. It went from about 10 drops a night to a couple. then completely stopped for a while. After a period of time (not sure exactly since I stopped checking assuming this might be a permanent fix) I noticed the leak had returned. Upon my next oil change I moved to this product, which according to sources is a stronger stop leak. This works better but the leak did return eventually. On my 2nd bottle of this product, I changed my oil early (for a different reason) during the period of time when the leak had stopped...so I added a 3rd bottle to fresh oil at a point where the leak was stopped. For clarification, except for the first bottle of the rear main seal stop leak, my practice has been to add one bottle when changing oil. Hopefully, I can get ahead of the issue with fresh Blue Devil on an already stopped leak? Dunno---not holding my breath. It works good enough that I would recommend it. It seems effective if you have leaky seals, but I am not sure it is a permanent remedy.

Seams to be working

This product does what it says, but you have to be patient. I recently had an oil leak on my truck. And since it's been the first time I've ever had anything like that in any of our line of cars in my family, I figured I'd test this out before I get down and work on the main-seal gasket or head-gasket. Afterall, its almost winter and I need the truck to head to Tahoe, every chance I have. I pour the whole bottle in the crankcase, and after driving it a couple of hours it didn't seem to make much difference. Then I did the same the following day, and I began to see less oil consumption. Lately, it seems to just drop one drop every now and then. I would look at it as the best patch-job in the market, but will consider tearing the engine apart in the summer and fix the leaking problem permanently.

Did not work. Total waste of Money Update It does workUPDATE 1/16/2017About a week ago I gave this product a bad review. I had followed the instructions.It took longer then expected to seal the leak so I am eating my words and now reporting it works.Not inclined to replace gaskets on a car that is at almost 200000 miles.My plan is now is to add 2 oz of Blue devil at each oil change So I will need to purchase another bottlebefore my next oil change.It took about 1 week to stop leaking oil. So give it some time.Update 2/13/2017Still no leak and am very pleased with it.Update 2/27/2017My wife drive this car for short distance 10 Minute trips for the most part.It started leaking a little bit. I believe every so often at least every 3 or 4 weeks needs a 30 minute drive.Since I drove it more over the weekend it stopped leaking.

Second bottle in Mar, 2022 review:After driving about 500 miles, the leaking was still pretty bad.I called the company to see if I can a second bottle. They said yes.Tried second bottle. After driving about a week, I checked the oil level. It was going down.And the leaking was getting worse.I have to add some engine oil to top it up because it is half low.I will drive a few months and may try a third bottle.Or I need to replace the engine seals.-First bottle in Feb, 2022 review:I did a lot of research before I bought it. And I did expect it to seal the oil leak in my engine.The leak was because of the front valve cover gasket. I can see the oil coming out there.I thought it would work. But it didn't.After a week of driving, the engine is still leaking oil.Not sure what I should do. But I will return the empty bottle to get my money back.Should I try a second bottle after driving a few weeks?

Doesn’t Stop Leak

2012 Ford Focus SE 230,000 miles, Had a timing cover oil leak, which was pretty bad in December 2019. Each time i parked oil would drip onto my driveway and obviously had to top up constantly. Had a quote from 2 shops to have it repaired and was told timing cover, valve cover and sump pan had to be removed to replace the front end crank oil seal. Cost would be $1300.00. Was about to have it done, but then decided to do some research on oil leak repairs. Came across the Blue Devil product and based on the reviews decided to give it a shot. Purchased the first bottle as a trial and added it last week of December 2019. Drove about 400 miles all at once. and the leak reduced significantly, but not completely. Drove another 2000 miles and further reduction, but there was still a mild leak. About mid Feb 2020, called customer service at Blue Devil to discuss suggestions. Representative was extremely cordial and helpful, immediately recommended a second bottle which BD would supply free of charge as long as i had the original receipt emailed to them. Sure enough 3 days later, a free replacement bottle arrived and was poured in. Drove daily long distance from then on and the leak reduced further. After about another 5000 miles, early March, the leak completely stopped. Driven another 8000 miles since then and still no oil leak. Needless to say, more than pleased with the product and exceptional results. Repair would have cost $1300.00, 1st bottle of blue Devil cost $21.00 and second , free!. Another take away is that it requires run time (miles) to get the product to work at its best. Be patient, it works.100% satisfied!

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