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    M1 0w20 no longer GM4817M?

    I picked up a 5Qt jug of the new SN/GF-5 M1 AFE 0w20. While GM6094 is still listed, there is no longer any reference to GM4817M. It was a bit of an odd certification for an Xw20, at any rate. But I always liked having it on the bottle. Anyway, it suggests that they *did*, in fact, change the...
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