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Path: utzoo!watmath!clyde!bonnie!akgua!mcnc!decvax!tektronix!orca!graham
From: graham@orca.UUCP (Graham Bromley)
Newsgroups: net.auto
Subject: Mobil 1 oil
Message-ID: <1221@orca.UUCP>
Date: Fri, 7-Dec-84 15:47:34 EST
Article-I.D.: orca.1221
Posted: Fri Dec  7 15:47:34 1984
Date-Received: Sun, 9-Dec-84 06:39:20 EST
Organization: Tektronix, Wilsonville OR
Lines: 17


	I'm a bit puzzled by all the discussion about use
of Mobil 1 synthetic oil (5W-30) in cases where the
owner's manual requires 10W-30 or 10W-40, as they usually
do. Surely the best thing is to simply use a good quality
oil of the recommended weight and change oil and filter
as specified, or more frequently if you really want to.
Why risk voiding your manufacturer's warranty? No magic oil 
will prevent your engine from gradually wearing out. 
(The body will probably rust out first anyway).
	As for Mobil 1 lasting 25000 mi between changes, don't
you believe it. The oil molecules themselves might, but long 
before then the oil will be polluted with minute metal particles 
from engine wear and combustion blow by etc., especially if
the engine is new or rebuilt. If you are are really concerned 
about engine life, just do as the manual says. Oil and filter 
every 7500 mi seems to be the norm (for Japanese cars at least).