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From: rjz@ihwpt.UUCP (R. Zurawski)
Newsgroups: net.auto.tech
Subject: What motor oil should I use?
Message-ID: <561@ihwpt.UUCP>
Date: Mon, 11-Nov-85 23:02:01 EST
Article-I.D.: ihwpt.561
Posted: Mon Nov 11 23:02:01 1985
Date-Received: Wed, 13-Nov-85 07:15:45 EST
Distribution: na
Organization: AT&T Bell Laboratories
Lines: 30


The other day I took my car in to one of those 10 minute
oil change places.  I asked for 10W-40 oil.  The guy who was servicing
my car said that I should be using 10W-30.

I was surprised by his suggestion. I thought that 10W-40 was an all
season motor oil.  He told me that 10W-40 oil was going to be phased out
in about two years (by the oil makers) and
that I should use 10W-30 all year round since I have an aluminum engine.
He said that lately most auto manufacturers suggest 10W-30 for all
year care. He suggested that I may want to use an oil like 15W-50
during the summer since I do a lot of highway driving, but 10W-30 was O.K.

Also, the 10W-30 oil that they used was rated SE-SF-CC. I never heard 
of this rating. 

Questions:
1) What is this rating SE-SF-CC?
2) Is it true that 10W-40 will be phased out?
3) Is 10W-30 safe to use ALL year round?
4) If the answer to number 3 is "no", what oil should I use?

Please kept the following in mind as you answer:
I have an aluminum engine, I drive about 15,000 miles a year,
75% of my driving is at highway speeds (60+) and I live in the midwest.


Thanks in advance.
Bob Zurawski
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