TIP: Click on subject to list as thread! ANSI
echo: automotive
to: All
from: James Haight
date: 2012-05-08 22:48:38
subject: Re: Odd rumble in Durango

mVÌPVÿÿ>  I'm not aware of a 30w-30, but that might cause other issues.
mVÌPVÿÿ>  
mVÌPVÿÿ>  - Mark


Used to use 30 30 in the aircooled VW and/or the lawn mower. Why? Because
the engine tolerances were loose to accomodate for the expansion of a hot
air cooled engine during heating and cooling. VW had more problems when
their aircooled engines got bigger and ran hotter. They kept playing with
alloy combinations that would allow the engine the ability to expand and
contract. So... they played with the ratio of aluminum, silicon and
magnesium.  It was well known that if your Porsche 914 engine caught fire,
then you should abandon the car and and just watch as the magnesium did
it's fireworks display and melt like the wicked witch in the wizard of oz.
Nothing you could do about it. 

jah

  
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