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Subject:Re: DOn't use SM rated oils Re: Flickering Oil Light 84 auto
From:Mike S
Date:Thu, 13 Sep 2007 19:37:01 -0400
At 06:11 PM 9/13/2007, Todd Last wrote...
>I thought you were not supposed to run SM rated oils because of the
>lack of zinc additive?

Shell Rotella T "Synthetic" (actually, a Group III, hydrocracked
petroleum basestock) 15W-40 is available for fairly cheap at
Wally-world (~$14/gallon). Although marketed as a diesel oil, it also
carries an SL/SJ/SH (but not SM) rating. http://tinyurl.com/2ms42g

VW approves a 15W-40 to the same max temp as a 20W-50, but you also
pick up some extension on the low temp end.