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From: fish@ihu1g.UUCP (Bob Fishell)
Newsgroups: net.auto
Subject: Re: oil viscosity
Message-ID: <522@ihu1g.UUCP>
Date: Mon, 24-Sep-84 22:41:38 EDT
Article-I.D.: ihu1g.522
Posted: Mon Sep 24 22:41:38 1984
Date-Received: Wed, 26-Sep-84 07:40:24 EDT
References: <1326@ucla-cs.ARPA>
Organization: AT&T Bell Labs, Naperville, IL
Lines: 13

Almost any fluid will get more viscous with low temperature because
the molecules have less free energy then and are thus less inclined
to not be in each others' way.

Oil viscosity refers to (well I think) its characteristics at operating
temperature.  Multi-viscosity oils tend to remain near their optimum
characteristics over a wider range of operating temperatures, and are
thus better suited to climactic extremes than are the single-viscosity
oils.
-- 

                               Bob Fishell
                               ihnp4!ihu1g!fish