0w30, 0w40, 5w30, 5w40, 10w40 are all ok for a stock engine
GM US recommendation is 0w30
in Europe it is 10w40 (or 5w40, don't remember)... same engine, almost same climate...

Engine Oil, Which Type?
Started by
d4nnyk
, Nov 26 2009 10:53 AM
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