Quote:
Originally Posted by RallyRunner
just an FYI if you don't already know, you are now cleared by GM's DEXOS approvals to use regular M1 0W40 (FS) now if you wanted to - you can find them at walmart reguarly for $25/5qt jug which will cut your oil cost in about half.
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It has to be the API-SP certified version, there is still alot of API-SN still in circulation.