Formula 4-Stroke Motor Oils

AMSOIL Synthetic Small-Engine Oil protects against wear, deposits and oil consumption in over-worked, under-maintained small engines professionals rely on to make a living.

Showing all 7 results

  • Amsoil Formula 4-Stroke Power Sports Synthetic Motor Oil

    Formula 4-Stroke Power Sports Synthetic Motor Oil

    (AFF)




    APPLICATIONS AND RECOMMENDATIONS
    AMSOIL Formula 4-Stroke Power Sports Synthetic Motor Oil is recommended for four-stroke engines. It is also recommended for transmissions in two- or four-stroke applications. It is an all-climate/all-season oil that replaces 0W-30, 0W-40, 5W-30, 10W-30 and 10W-40 oils for ATVs, UTVs, snowmobiles and other powersports equipment. Also recommended as a replacement for Polaris Synthetic PS-4 Plus and Arctic Cat Synthetic ACX. Manufacturers include Polaris®, Honda®, Yamaha®, Ski-Doo®, Can-Am® (Bombardier®), Suzuki®, Kawasaki® and Arctic Cat®.

    API SL/CF, SJ, SH, SG
    JASO MA/MA2
    ISO-L-EMA2

  • Amsoil 10W-30 Synthetic Small Engine Oil

    10W-30 Synthetic Small Engine Oil

    (ASE)




    Applications and Recommendations
    Use the appropriate viscosity of Synthetic Small-Engine Oil in applications that require any of the following specifications:

    API SL, SJ, SH, SG…(Gasoline)
    API CD, CF (Diesel)
    JASO MA/MA2, (Wet Clutch)

  • Amsoil Formula 4-Stroke Synthetic Scooter Oil

    Formula 4-Stroke Synthetic Scooter Oil

    (ASO)




    Applications and Recommendations
    Use wherever SAE 10W-40 motor oil is specified in air-and water-cooled four-stroke motorized scooter engines, transmissions and gearboxes recommended for any of the specifications below, including those made by Honda*, Kawasaki*, Suzuki,* Yamaha*, Vespa*, Aprilia*, Piaggio*, Benelli*, Vento*, Kymco*, Tank* and TGB*.

    API SG, SL/CF
    JASO MA/MA2 (motorcycle wet clutch)
    ISO-L-EMA2

  • Amsoil Shock Therapy Suspension Fluid #5 Light

    Shock Therapy Suspension Fluid #5 Light

    (STL)




    Recommendations
    Use AMSOIL Shock Therapy Suspension Fluid in front forks and shocks on snowmobiles, dirt bikes, motorcycles, ATVs and other racing and recreational-use vehicles, as well as cars and trucks that require suspension systems that perform in the most extreme conditions. Agitate the fluid before use. Shock Therapy Suspension Fluid Light #5 is the preferred choice for winter use.

    Use AMSOIL Shock Therapy Suspension Fluid Light #5 in suspension systems where less dampening and quicker rebounds are desired, including those made by Showa*, Kayaba*, Bilstein*, RydeFX*, Penske* and WP* forks; and RACETECH* (US1) and Custom Axis*.

    Use Shock Therapy Medium #10 (STM) in suspension systems where more dampening control and slower rebounds are desired, including those made by Ohlin*, FOX*, RACETECH (US2), Koni* and WP shocks; and Harley-Davidson* forks that recommend type “E” or “B” fork oil.

  • Amsoil Shock Therapy Suspension Fluid #10 Medium

    Shock Therapy Suspension Fluid #10 Medium

    (STM)




    Recommendations
    Use AMSOIL Shock Therapy Suspension Fluid in front forks and shocks on snowmobiles, dirt bikes, motorcycles, ATVs and other racing and recreational-use vehicles, as well as cars and trucks that require suspension systems that perform in the most extreme conditions. Agitate the fluid before use. Shock Therapy Suspension Fluid Light #5 is the preferred choice for winter use.

    Use AMSOIL Shock Therapy Suspension Fluid Light #5 (STL) in suspension systems where less dampening and quicker rebounds are desired, including those made by Showa*, Kayaba*, Bilstein*, RydeFX*, Penske* and WP* forks; and RACETECH* (US1) and Custom Axis*.

    Use Shock Therapy Medium #10 in suspension systems where more dampening control and slower rebounds are desired, including those made by Ohlin*, FOX*, RACETECH (US2), Koni* and WP shocks; and Harley-Davidson* forks that recommend type “E” or “B” fork oil.

  • Amsoil Briggs & Stratton Synthetic 4T Racing Oil

    Briggs & Stratton Synthetic 4T Racing Oil

    (GBS2960)




    APPLICATIONS
    Use Briggs & Stratton Synthetic 4T Racing Oil in stock and modified small-displacement air-cooled racing engines used in kart, junior drag, quarter midget and other racing applications. It is recommended for any four-stroke air-cooled competition engine, whether single- or multi-cylinder, splash- or pressure-lubricated, including Briggs & Stratton* V-Twin engines requiring the listed viscosity and lubricating properties. Synthetic 4T Racing Oil is recommended for alcohol- and gasoline-fueled engines. Compatible with mineral oils.

  • Amsoil 10W-40 Synthetic Small Engine Oil

    10W-40 Synthetic Small Engine Oil

    (ASF)




    Applications and Recommendations
    Use the appropriate viscosity of Synthetic Small-Engine Oil in applications that require any of the following specifications:

    API SL, SJ, SH, SG…(Gasoline)
    API CD, CF (Diesel)
    JASO MA/MA2, (Wet Clutch)