Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site bonnie.UUCP
Path: utzoo!watmath!clyde!bonnie!saf
From: saf@bonnie.UUCP (Steve Falco)
Newsgroups: net.auto.tech
Subject: Re: What motor oil should I use?
Message-ID: <622@bonnie.UUCP>
Date: Wed, 13-Nov-85 08:14:08 EST
Article-I.D.: bonnie.622
Posted: Wed Nov 13 08:14:08 1985
Date-Received: Thu, 14-Nov-85 00:41:42 EST
References: <561@ihwpt.UUCP>
Organization: AT&T Bell Laboratories, Whippany NJ
Lines: 20

> 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?

1) I believe SE and SF are gasoline engine ratings while CC is a diesel
   rating.  In all cases it refers to the durability and lubrication
   capability of the oil.  The auto manufacturers recommend a classification
   to use.  For example, in '79, Chevy said use SE or better.  They said
   don't use SE/CD (does anyone know if SE/CD is different from SE-CD??)

2) I have seen notices that GM no longer recommends 10W-40, they are
   switching to 10W-30.  I don't know why.  I also doubt that 10W-40
   will become unavailable.

3) Again, check with the manufacturer.  My Chevy can use 10W-30 most of
   the year but there are different recommendations for extreme
   climates.

	Steve Falco