Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#1
05-28-2009, 11:22 PM
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Oil with ash help
My friend has a 70 chevelle 454 and the motor has 13 1/2
compression motor (not the orig one) and was running 20/50 oil.He was using the GM additive to compensate for the ash. Now its no longer available,What motor oil or additive would now be availiable to replace the GM additive??? PJ 
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