BlueDevil Oil Stop Leak 8 oz - Permanent Engine Oil Leak Sealer

Blue Devil really works! I was hesitant to try it, but I got on line and looked at alotvof positive reviews. So I tried it on my 08 Cadillac, within 10 miles the rear main seal quit leaking.I would definitely recommend

I had a very small oil leak. I first noticed it on my garage floor. Then it was found to be in my cooling system. I needed to keep my old Subaru 2000 Outback with 275000 miles on it running without doing costly repairs. I had used the BlueDevil hydraulic stop leak in my ZTR lawn mower which had a major leak, and I was amassed that it stopped. So I thought I would try the BlueDevil Oil Stop Leak. You guess it. The leak is gone. This stuff is amassing. Highly recommended.

Worked as described. I was working on a car that sat for a couple of years. I got it fired up and realized quickly that it was leaking pretty good from the front and rear main seals. I shut it off and poured a bottle of this in and fired it up again. Within minutes all leaking had stoped. Well from the oil anyways lol. Had to pour a half bottle of Blue devel in the power steering to get the rack n pinion seals to swell up. worked out great!

excellent service and product

used on 2005 silverado with over 300K miles along with blue devil rear main seal stop leak. still has a slight leak, but noticeably helped. Definitely exceeded my expectations

After a Google search of oil stop leak products, my decision to buy the Blue ***** brand was imminent. Walmart had it in stock and the rest, as they say, was history.

It actually works. Turned a disaster into a pleasurable experience. Was expecting a big repair bill. Still not leaking oil after many months and a couple oil %26 filter changes!

This stuff really works on small oil leaks. I used it my 04 Avalanche.

I have used several times and it has stopped the oil leaks.

worked rather quickly. followed the easy instructions and have not had any more issues.