jenksy0198
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Posts posted by jenksy0198
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HI all, new to the site. I have a great 650i , 2006 done 87K miles, full history which I think is a fab car with the N62 V8 engine. Car does about 3-4K miles a year. Recently I noticed some smoke at the rear which looked like oil smoke and following some research and checking of various breathers etc I pretty much isolated it down to the valve stem oil seals. The smoke was bad enough for it to have failed MOT so I did some digging and sure enough the confirmation was valve stem oil seals.
So what to do?
I went back to the books as it where and came across a series of articles on oil additives that can help rejuvenate tired valve stem oil seals. So at the next oil change I purchased some LiquiMoly product (thought I would trust the Germans) and put this in with the specified oil. I ran the car for about 3-400 miles and the smoking disappeared, to the extent that it passed the MOT also. I know there are a range of such additives out there and to be fair I was a bit sceptical but I now have the proof. Is there any other experience on this with this or other additives as I want to learn more and understand the limits of said additives and when I might have to bite the bullet and replace the seals.
So far so good though and I plan to continue to use said additive with future oil changes .
Would appreciate any experience share
Oil Additives Valve Stem oil Seals Experience N62 Engine
in Oils, Fuels & MPG
Posted
Hi Dave, I too was a sceptic but I thought to give it a try. No other symptom other than smoke. if the guides were a problem I might have expected a few more issues I suspect. But for now all is good and I am sold on the additive. Yes, enoying it very much, fab bit of kit