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Originally Posted by Hatterasguy
MB specs out Mobil 1 0w40 or 15w50. From what I have seen from oil tests in 603/606's I don't see a problem with 10k mile changes provided synthetic is used. The entire FSS lawsuit was about this.
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I know. Synthetic Mobil 1 is fine. The FSS lawsuit protects engines serviced by the new car dealer(since day one, possibly) up to 150K miles, no more
AFAIK.