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Path: utzoo!aesat!hal
From: hal@aesat.UUCP (Hal Patnaik)
Newsgroups: net.auto
Subject: Graphite in Mobil 1 oil
Message-ID: <244@aesat.UUCP>
Date: Mon, 8-Oct-84 16:44:27 EDT
Article-I.D.: aesat.244
Posted: Mon Oct  8 16:44:27 1984
Date-Received: Tue, 9-Oct-84 09:14:07 EDT
Organization: AES Data Inc., Mississauga Ont., Canada
Lines: 44

I seem to be a bit confused here.  Does Mobil 1 have graphite  in
it  or  not?   According  to Karren Hettinger (see article below)
there IS graphite in  Mobil  1.   Could  someone  please  explain
whether  there  is  or  is  not.   And  if  there is, what is its
purpose, and whether or not is is harmful for the engine?

Also,  if  synthetic  oils  are  so  wonderful,   why   do   most
manufacturers   warn  that  they  will  not  stand  behind  their
warantees if you put synthethic oil into your engine?

Here is "kitten"'s article:

> From kitten Thu Oct 04 21:35:59 1984
> Subject: Mobil One, graphite-based oils
> 
> ...I know of someone who had bad experience with Mobil One ... He
> [said] he had used it in three or four different  cars.    ... 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 ... the graphite flakes are supposed to form a
> layer between metal parts. ...  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.
>
> Karen Hettinger

Any comments would be appreciated...

Hal Patnaik
{allegra,ihnp4,linus,decvax}!utzoo!aesat!hal

AES DATA, Inc.			Bus:	(416) 821-9190 x. 364
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