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  1. J

    What year did Mobile1 change to a group 3?

    Hi All I like reading this site's info. I once worked in a bearing & lube research lab many, many many years ago. Quick question: I have a 2004 Cadillac V-6. It's recommended that I use Mobile1. Did Mobile change change it's formulation from synthetic to mineral before or after 2004? I've...
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