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  1. 3

    MB229.5 and MB229.51

    Thank you. Could you help with another question? Looking at an engine oil for my 2017 R231 AMG SL63 (engine M157) that consumes less engine oil than Mercedes-brand Mobil1 5w-40 229.5. The thing drinks the Mobil1 oil and I’m tired of it. Mileage is 27k and engine is perfect with no smoke or...
  2. 3

    MB229.5 and MB229.51

    The compatibility question was never answered. If an oil bottle lists 229.51 approval, and the car requires 229.5, is the 229.51 compatible? Can someone state yes or no and possibly explain where the compatibility information came from?
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