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  • How To Fix Motorcycle Engine Knocking
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    MotorcyclesProduct HighlightsAsk AMSOILDirt Bike

    How To Fix Motorcycle Engine Knocking

    Your bike can automatically detune its engine, but there's an easy fix.
  • ILSAC GF-6, API SP & dexos: Making Sense of Motor Oil Specifications Play Video
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    Cars & TrucksIndustry NewsProductsPerformanceAsk AMSOIL

    ILSAC GF-6, API SP & dexos: Making Sense of Motor Oil Specifications

    AMSOIL synthetic motor oils meet or exceed the latest performance specifications.
  • What Do Spark Plugs Do?
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    ATV/UTVMarineMotorcyclesSnowmobileSmall EnginesDirt BikeCars & Trucks

    What Do Spark Plugs Do?

  • Why Does My Engine Knock? 3 Possible Explanations.
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    Why Does My Engine Knock? 3 Possible Explanations.

    Do you hear an engine knocking sound when you hit the gas? It could be due to pre-ignition or detonation....

    • AMSOIL Performance Testing

    Laboratory tested and proven on the road.

    See how AMSOIL products perform in the lab and in the field.

    Check out the tests

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