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    Amsoil SAE 5w-40 MS vs FS

    For my application ... 2017 Audi S6 (twin turbo V8, Stage 1)... VW spec 502.00 ... OEM uses Castrol Edge Professional 5w-40 (Dealership only). I have always switched over to Amsoil products after Factory warranties run out ... The Amsoil site shows 3 oils for my application SAE 5w-40 MS (no...
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