49499 Oil Stop Leak - 8 Ounce

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!

used in my 2007 Tahoe with 350,000 miles and it worked almost immediately.No more oil leaks on garage floor.Also had bottle of rear main oil leak but did not have to use it.

I’ve used the product twice now and it appears to work better if you incorporate it with a motor oil that is formulated for vehicles with High mileage . There was a hiccup with one of the orders and I had to purchase it at O’rileys auto parts store .☹️

So far so good Car not leaking

Well I tried this sad to say it did not work so I'm just out of money SMH

Either this didn’t work or I have way more leaks then expected lol

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.

Actually helped!