Date: Sun, 16 Sep 2001 15:21:19 -0700
From: Michael Pardee <>
Subject: Re: Does anyone use synthetic oils?

Proconsul wrote: > > Mobil One is an exceptional product that anyone would be wise to use - no > matter what anecdotal warnings you will certainly get. I'm persuaded that > it's a benefit in any car - except for museum pieces....:) > > PC Many people who have put synthetic in engines with high mileage have suffered oil leaks, sometimes intolerable ones that required major work to repair - especially if the rear main seal starts pouring oil. The popular view is that synthetic dissolves deposits that coat hardened seals, leaving gaps. 50K miles is the point at which most of us get uneasy about it. Engines that were changed to synthetic before the seals hardened don't have that problem. Mike

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