i gotta hijack the thread.........sorry
i use 89 for my 01 v6...dad uses 94 from sonoco for his camaro.
i thought it was like a standard that v4/i4 = 87, v6 = 89, v8+ = 91+
could i get away with the cheep stuff? what would it do to my engine if i went down a notch? if i had a v8 could i still use the cheep stuff?
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