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Re: quattro-digest V3 #829

> This is all true for new engines.  Old clunkers have wider gaps and need
> heavier oil to fill them.  AFAIK only Hondas (<g> Budda's name be
> praised!) and newer GM engines have a special design that needs 10w30 no
> matter what.  I was told it has something to do with upper part of
> cylinder block...

My new Chevy truck (for getting Audi parts) says 5w30 preferred or 10w30 ONLY!