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From: mjs@g.cs.cmu.edu (Mark Stehlik)
Newsgroups: net.auto.tech
Subject: oil mixing and annoyance
Message-ID: <336@g.cs.cmu.edu>
Date: Mon, 23-Dec-85 17:07:28 EST
Article-I.D.: g.336
Posted: Mon Dec 23 17:07:28 1985
Date-Received: Wed, 25-Dec-85 03:46:22 EST
Organization: Carnegie-Mellon University, CS/RI
Lines: 38


I found the following exchange mildly annoying:

> In article <2398@amdahl.UUCP> ems@amdahl.UUCP (ems) writes:
> >My car manual says ~' Use 10W40'.  So I want to use 10w40.
> >Mobil 1 comes in 5w30 and 15w50.  (I think...)
> >Could I get 10w40 by mixing equal parts of each?
> 
> No need to. The spec sheet for Mobil 1 10w-30 says that it could be used in
> applications requiring 10w-40.  I believe that is because at the higher
> temperatures, it does not thin out as fast as regular oil.

And I think it is because Mobil doesn't want the expense of starting
up another product line.  But regardless of cause; *My manual says
to use 10w40*.  I *WANT* 10w40.  Not something someone thinks is
close enough.  Can I get it by mixing the other weights?

------------------------------------------------------------------ 

Look, Mr. Smith, the response to your post was perfectly reasonable.  I
doubt that many readers of this newgroup are polymer chemists and can
answer your question without prefacing their remarks with 'I think'.

If you *WANT* 10w40, you'll just have to do without Mobil 1.  If you *WANT*
Mobil 1, CALL THEIR PRODUCT SERVICE REP and see if you can mix the products.
I THINK not - oils of different viscosity are not likely to mix to give
you intermediate values.  Of course, this is only based on my experience
and is, after all, my OPINION.

Don't beat on someone because he's trying to be helpful and it so happens
that he's not the person you want him to be (i.e. a technical rep for the
blasted company).

				Mark
-- 

ARPA:  mjs@cmu-cs-g
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