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From: kitten@pertec.UUCP (karen hettinger)
Newsgroups: net.auto
Subject: Mobil One, graphite-based oils
Message-ID: <238@pertec.UUCP>
Date: Thu, 4-Oct-84 21:35:59 EDT
Article-I.D.: pertec.238
Posted: Thu Oct  4 21:35:59 1984
Date-Received: Sat, 6-Oct-84 02:16:51 EDT
Organization: Pertec Computer Corp., Irvine, CA
Lines: 23

I don't claim to be any kind of expert on oils, but I know of someone
who had bad experience with Mobil One.  A guy I knew who worked at
Sacramento Racing Equipment (the ORIGINAL Super Shop) said he had used
it in three or four different cars.  These cars were NOT used for racing
of any kind, he was mostly a tinkerer.  He found upon inspection after
using the oil for various lengths of time in the different cars that
ALL suffered extreme wear damage, caused by the graphite in the oil.
(P.S. If I recall correctly, all the cars saw at least one oil change.)

As I understand it from memeory of the Mobil One commercials, the graphite
flakes are supposed to form a layer between metal parts...say the lower
piston and the cylinder wall.  What had happened instead is that the graphite
*caused* friction between the metal parts, and since I understand graphite
to be a somewhat hard compound, it caused scratches in the metal.  All I can
figure is that 1) the graphite flakes did not lay flat between the metal
parts as intended, or 2) the graphite was not in a flake form, and acted as
would metal fragments suspended in the oil.

Does anyone more knowledgable have any comments?

-- 
	kitten~
	{ucbvax!unisoft | scgvaxd | trwrb | felix}!pertec!kitten