Bar's Leaks OS-1 Oil Seal Engine Oil Burning and Leak Repair, 16.9 oz.

Impressed with how well this product help reduce the amount the of oil consumption and oil leaks in our 2008 6cyl , 175K mile car. While the car still has a leak somewhere as I can smell it hit the exhaust pipe at times, it is not leaving alot on the ground like it was before. I will likely keep using this product after each oil change until we eventually just get rid of the car.

I used a ton of this S* in my Mountaineer before I realized that my F* oil sensor plug was actually leaking. $20 and 15 minute fix. However, I use this stuff in all my older vehicles and any seal leak stops after a week or so. Good S* ! A must for older motors. Good price.

As my car get near 15 years old and still a daily driver had started to experience many leaks. The BMW community says not to use the product in your BMW. I have a BMW 323i and with the age and mileage was looking at putting a couple thousand into repairs so gave this a shot. Multiple leaks were resolved while one weeper persists. Have ran for over a month with minimal oil loss and improved performance. I did end up flushing out the system after running it with this product in it for the month.

Actually works. Had a car that burned oil bad due to a poor engine design! This kept the oil contained. However I found this needed to be constantly applied to work. Not just one and done in my situation.

I tried this on a 2004 Tahoe Z71 with 120k miles that had a rear main engine seal leak. It did not work and I thought I would utilize the full refund guarantee until I read the requirements of having a repair shop use it and verify that it did not work. Where are you going to find a shop that will waste their time to use this item? You’d have to make one up, so use it as a “Hail Mary” to see if it’ll work but don’t deceive yourself into thinking that you can get your money back if it doesn’t work. P.S. I work part-time at a repair shop and I won’t compromise my values to get back $15+ because of a gimmick warranty offer.

I use it every 6 months with 12,000 mile synthetic oil and keeps seals lubricanted, and leak free.

Doesn’t change a thing. My vehicle blows a little white smoke only while idling so I suspect it isn’t major. This did absolutely ZERO to change it.As in Pharmaceuticals, they call this the “Placebo effect” Don’t waste your money.

It was easy to use and performs as advertised. You have to use a new bottle at each oil change. I saw this on a Scotty Kilmer video and used it to stop fluid leaks.