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Amsoil Synthetic Motor Oils for Gasoline Engines

Signature® , Extended Life and OEM Series

  • Signature Series

    Amsoil Signature® Series Motor Oils

    For those who want the absolute best protection, performance and maximum value through extended drain intervals.

  • Extended Life Series

    Amsoil Extended Life® Series Motor Oils

    For those who want extended oil change intervals up to six months or 10,000 miles and may be used with any oil filter from a reputable manufacturer.

  • Original Equipment Manufacturer Series

    Amsoil Original Equipment Manufacturer Series Motor Oils

    For those who want excellent engine protection and performance for vehicle manufacturer-recommended oil change intervals.