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  • The One-Two Punch: AMSOIL P.i.® and Upper Cylinder Lubricant
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    Product Highlights

    The One-Two Punch: AMSOIL P.i.® and Upper Cylinder Lubricant

    These fuel additives work together to help keep your vehicle running at peak power and performance.
  • What is Engine Detonation?
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    SnowmobileSmall EnginesDirt BikeCars & TrucksATV/UTVDieselAsk AMSOILMotorcyclesProduct HighlightsMarine

    What is Engine Detonation?

    Engine detonation refers to spontaneous combustion of the remaining fuel/air mixture in the chamber after normal spark-initiated combustion.
  • The Dynamic Duo: AMSOIL P.i. & Upper Cylinder Lube
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    Cars & TrucksProduct Highlights

    The Dynamic Duo: AMSOIL P.i. & Upper Cylinder Lube

    One's a deep-clean product, the other a keep-clean product.

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