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Old 08-23-2006   #2
blackjack
 
Join Date: Aug 2005
Location: north of montreal
Posts: 510
Default Re: Would 10W 30 Oil Hurt the Engine

i was under the impression that gm did recommend 10w30 dor the zr-1...
maybe this has changed with my 93...i use 10w40 amsoil to get that bit extra protection too...i know some people use red line oil,but i have very good results in my motorcycles and my f-350 diesel with amsoil products
if you drive hard at all,go with 10w30,or 10w40....my opinion,anyway
blackjack
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