From: JIMRHER@aol.com
Message-ID: <142.9b06a6a.29a1fa7b@aol.com>
Date: Mon, 18 Feb 2002 01:34:35 EST
Subject: synthetic oil 
To: lancair.list@olsusa.com
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HI Gary,

I remember reading about the Mobil 1 Pure Synthetic oil problem that was the 
subject of several replaced engines and resulted in Mobil taking the product 
off the market. What I remember is that a Pure Synthetic will not accommodate 
Lead so it doesn't like 100LL. It would plug up the small oil passages. I'm 
sure if you run LOP like George does that not much Lead by product would get 
past the rings, and may not show up as soon. The same oil works well in cars 
running NO Lead fuel.
The Aeroshells 15w 50 and others are Semi Synthetic and they work well with 
100LL. I'm not aware of any Pure Synthetic being sold to the Aviation market 
now. Still change your oil at recommended intervals.

Jim Hergert
N6XE plane Sexy L4P

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