BLUEDEVILOIL STOP LEAK

Initially this did not work but after a few days and a few hundred miles this did actually start to work, it still dripped but got slower and slower, its now 6 weeks later and the oil leak has stopped which is brilliant as the oil cooler leak would of cost between £1000 and £2000 to fix on my car.

I don't usually write reviews , but after using this product I thought I must. I had a bad oil leak at the rear bearing seal on my van, previously , I had tried two other popular makes , but both never worked, so I thought I would try this one as a last resort before a hefty garage repair bill. I poured in in with my oil, then went for a drive for a bout an hour, I stopped and checked for the oil leak, to my amazement , the leak had completely stopped. God knows how it works , but it certainly did the trick for me, I would advise anyone with an oil leak to try this one first and not to waste their money on other brands

No effect whatsoever. Didn’t work after 2hr running and 100 miles so contacted Blue Devil directly. They said it would need more time and miles. It’s now many hours more and about 1,000 miles. No change.

I first used with 10w 40 semi synthetic and this made it quite thin and the leak didnt improve. I changed my oil to mineral and a thicker viscosity and fingers crossed the leak may be healing up (crankshaft oil seal). if it works it saves me about £600 in parts and labour.

Fingers crossed, it did what it said it would do so far...Other mixed reviews mean I am still a little nervous but time will tell. I will change this post if it fails

Was sceptical when reading the other reviews, but have to say that now I have used it I would recommend it to others. I used it it in my daughters W reg Fiat Punto as there was a leak I just couldn't trace. After running it for a couple of days I notice a dramatic reduction in the oil pool left behind and now after a couple of weeks the leak has stopped altogether. Would use agin on any other car I had with a leak.

DID NOT DO MUCH FOR MY CAR BUT MY CAR WAS OLD

ok