BlueDevil Products 49499 Oil Stop Leak - 8 Ounce

I think it helped

Works great. Be patient. It will stop the leak.

Pretty much same review as I gave their trans. stop leak. Less than a week and 30 yo 4.3 V6 with worn out oil pan gaskets (gotta pull engine to replace) seems to no longer leak. Fingers crossed!

so I have a 30 yo Gator 6x4. Ya know like you see on the golf courses,all of a sudden drops of oil started appearing on the shop floor and more then more and bigger. Dreading the worse and a firm believer in Murphy's Law out of desperation I bought a bottle certain it would not work. We have a 3 acre yard which the wife just putts around in doing her gardening work and from time to time takes it to the pond to fish or the creek to walk it. Next thing I know I look under it and no more drips. My oil dry can be used or other things now but be danged sure I'll be buying another bottle to have handy for the next drip out of who knows what.

I had high hopes for this product from reading the reviews, so far I have put 180 miles on my 3.6 jeep and my oil drip is still there. It’s only a small drip the size of a quarter. Disappointing to say the least.

Doesn’t Stop Leak

My girlfriend’s older 350Z had started to leak oil. It was visible on the concrete where she parked and the smell of oil was strong when exiting the vehicle after driving. Added the stop leak to the crankcase and drove the Z for three solid hours on secondary roads at speeds between 45 and 60 mph, with occasional stops as required before returning to her home. No oil smell upon exiting vehicle. Cleaned the oil stains from the concrete with a degreaser and a stiff bristle brush before parking the Z in its usual spot. Checked the following morning. No oil on the concrete. Ran the engine and no oil smell or leaks detected. This product saved the cost of replacing valve cover and oil pan gaskets, which would have been considerable. My girlfriend is very happy. Thanks for the great product!

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.