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  • What Motor Oil is Right for Your Boat or Personal Watercraft Engine?
    How To
    Marine

    What Motor Oil is Right for Your Boat or Personal Watercraft Engine?

    Dedicated marine motor oil is vital to marine engine protection.
  • What Causes Engine Oil Oxidation?
    NewsHow To
    DieselAsk AMSOILCars & Trucks

    What Causes Engine Oil Oxidation?

    Engine oil oxidation can cause deposits, sludge and other performance problems. Synthetic motor oils offer better oxidation resistance.

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