I was talking to the dealership today about oil and i was told that for the C7 S6 the new Audi dealership oil is Mobil 1 10w-40. Has anyone else heard of this? When did the change from Castrol happen? I have not researched this yet since i just had the call but wasnt the Mobil 1 0w-40 the only VW approved oil? I have not seen an updated list recently.
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