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Motor Oils

One of the main aims of Amsoil is to ensure engine top performance and durability irrespective of driving conditions. It is widely acknowledged that, when it comes to motor oils, Amsoil has developed the perfect formula to deliver the best synthetic motor oil on the market. Amsoil synthetic oil is characterized by molecular stability and regularity, a feature that renders it more resistant to both internal and external altering factors.


With quality and efficiency as its highest standards, Amsoil delivers the most comprehensive line of synthetic motor oils intended for all types of engines. Amsoil synthetic oils range from the Amsoil engine oil to synthetic diesel motor oil, marine engine oil and 2 cycle oil and are mainly designed with multi-functional properties meant to improve transmission, decrease emissions and fuel consumption and inhibit rust and oxidation of all engine parts.
Amsoil is among the few who invest in product research and testing in an effort to achieve perfection in the field of synthetic lubrication. Consequently, Amsoil snowmobile oil, marine engine oil and diesel synthetic oil, to mention only a few, are based on an advanced synthetic formulation that addresses the inherent setbacks of conventional oils and other synthetic oils. Tests have indicated that Amsoil engine oil neutralizes acids and enables engines to function easily in the most hostile environments.
Amsoil synthetic oils, including the synthetic diesel motor oil, 2 cycle oil and snowmobile motor oil contain highly efficient performance additives that preserve the viscous and detergency properties and ensure utmost engine protection and extended service life.
  • Extended Life 10W-30 Synthetic Motor Oil (XLT) Extended Life 10W-30 Synthetic Motor Oil (XLT)

    AMSOIL Extended Life Synthetic Motor Oils deliver exceptional protection for 7,500-mile/6-month oil change intervals or longer where stated by vehicle manufacturers or indicated by electronic oil life monitoring systems. ...

  • Extended Life 10W-40 Synthetic Motor Oil (XLO) Extended Life 10W-40 Synthetic Motor Oil (XLO)

    AMSOIL Extended Life Synthetic Motor Oils deliver exceptional protection for 7,500-mile/6-month oil change intervals or longer where stated by vehicle manufacturers ...

  • Extended Life 5W-20 Synthetic Motor Oil (XLM) Extended Life 5W-20 Synthetic Motor Oil (XLM)

    AMSOIL Extended Life Synthetic Motor Oils deliver exceptional protection for 7,500-mile/6-month oil change intervals or longer where stated ...

  • Extended Life 5W-30 Synthetic Motor Oil (XLF) Extended Life 5W-30 Synthetic Motor Oil (XLF)

    AMSOIL Extended Life Synthetic Motor Oils deliver exceptional protection for 7,500-mile/6-month oil change intervals or longer where stated by vehicle manufacturers or indicated by electronic oil life monitoring systems. ...

  • SAE 10W-30 Formula 4-Stroke Marine Synthetic Motor Oil (WCT) SAE 10W-30 Formula 4-Stroke Marine Synthetic Motor Oil (WCT)

    AMSOIL 10W-30 Formula 4-Stroke® Marine Synthetic Motor Oil (WCT) is a premium quality synthetic formulation engineered for the harsh operating conditions of marine environments. ...

  • SAE 10W-40 Formula 4-Stroke Marine (WCF) SAE 10W-40 Formula 4-Stroke Marine (WCF)

    AMSOIL 10W-40 Formula 4-Stroke® Marine Synthetic Motor Oil (WCF) is a premium quality synthetic formulation engineered for the harsh operating conditions of marine environments. ...

  • Synthetic 0W-30 Motor Oil (TSO) Synthetic 0W-30 Motor Oil (TSO)

    Modern passenger car and light truck engines are built for fuel efficiency and power. AMSOIL Synthetic 0W-30 Motor Oil optimizes efficiency and power without the sacrifice in wear protection ...

  • Series 2000 Synthetic 20W-50 Racing Oil (TRO) Series 2000 Synthetic 20W-50 Racing Oil (TRO)

    The number one choice for racers of all types of vehicles. Special synthetic base stock blend and advanced additive package provides ...

  • Signature Series 0W-30 100% Synthetic Motor Oil (SSO) Signature Series 0W-30 100% Synthetic Motor Oil (SSO)

    AMSOIL Signature Series 0W-30 Synthetic Motor Oil is the industry benchmark in lubrication technology. Engineered with the world’s finest synthetic base oils and high performance additives ...

  • Synthetic Blend 15W-40 Heavy Duty Motor Oil (PCO) Synthetic Blend 15W-40 Heavy Duty Motor Oil (PCO)

    AMSOIL Synthetic Blend 15W-40 Heavy Duty Motor Oil (PCO) features a dual-base of premium synthetic and hydro-processed base oils in formulation with proven high quality anti-wear additives. ...

  • SAE 20W-50 Synthetic Motorcycle Oil (MCV) SAE 20W-50 Synthetic Motorcycle Oil (MCV)

    High Performance Lubricant for Engines, Transmissions and Primary Chaincases API SG, SL/CF; JASO MA/MA2; API GL-1 ...

  • SAE 10W-40 Synthetic Motorcycle Oil (MCF) SAE 10W-40 Synthetic Motorcycle Oil (MCF)

    AMSOIL Synthetic Motorcycle Oils have been reformulated with new high performance additive technology that provides even greater multi-functional benefits for the special requirements of motorcycle applications. ...

  • Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD) Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)

    AMSOIL Series 3000 100% Synthetic 5W-30 Diesel Oil (HDD) delivers extraordinary lubrication in both diesel and gasoline engines found in commercial, fleet and personal vehicles. ...

  • AMSOIL Synthetic 5W-40 Premium Diesel Oil (DEO) AMSOIL Synthetic 5W-40 Premium Diesel Oil (DEO)

    AMSOIL Synthetic 5W-40 Premium Diesel Oil (DEO) is the premium choice diesel oil for model year 2007 and newer heavy-duty and pickup truck diesel engines requiring API CJ-4 emission quality oil standards. ...

  • 100% Synthetic 10W-30 Motor Oil (ATM) 100% Synthetic 10W-30 Motor Oil (ATM)

    AMSOIL 100% Synthetic 10W-30 Motor Oil (ATM) delivers extraordinary lubrication in all types of automotive gasoline engines. By combining the industry premier synthetic technology ...

  • Formula 4-Stroke® 10W-40 Synthetic Scooter Oil (ASO) Formula 4-Stroke® 10W-40 Synthetic Scooter Oil (ASO)

    AMSOIL Formula 4-Stroke® 10W-40 Synthetic Scooter Oil (ASO) is formulated specifically to meet the special needs of today’s high-tech air- and water-cooled fourstroke motorized scooters ...

  • 100% Synthetic 0W-20 Motor Oil (ASM) 100% Synthetic 0W-20 Motor Oil (ASM)

    AMSOIL 100% Synthetic 0W-20 Motor Oil (ASM) delivers extraordinary lubrication for automotive gasoline engines. AMSOIL combined the industry premier synthetic technology ...

  • 100% Synthetic 5W-30 Motor Oil (ASL) Best Seller 100% Synthetic 5W-30 Motor Oil (ASL) Best Seller

    Engineered to outperform all conventional gasoline engine motor oils. Reduce heat, friction and wear for maximum power, performance and fuel efficiency. Clean engine formula. Resists high temperature break down that forms sludge and varnish. ...

  • Formula 4-Stroke® 10W-30/SAE 30 (ASE) Formula 4-Stroke® 10W-30/SAE 30 (ASE)

    A commercial grade formulation designed for hot temperature, severe service operation of small engines where routine maintenance is often difficult or infrequent. Recommended for use wherever SAE 10W-30 or SAE 30 oil is specified... ...

  • SAE 20W-50 Synthetic Premium Protection Motor Oil (ARO) SAE 20W-50 Synthetic Premium Protection Motor Oil (ARO)

    Formulated for use in both gasoline and diesel engines. Offers multi-functionality and excellent wear protection. Ideal for applications where the extra protection of a higher viscosity oil is desired. ...

  • SAE (20W)-40 Synthetic Natural Gas Engine Oil (ANG) SAE (20W)-40 Synthetic Natural Gas Engine Oil (ANG)

    Low ash (< 0.5%). Resists oxidation and acids. Lasts longer. Can be used to safely extend drain intervals with oil analysis. Reduces oil consumption. Reduces valve recession. Flows well in cold temperature. Low volatility. ...

  • SAE 10W-40 Synthetic Premium Protection Motor Oil (AMO) SAE 10W-40 Synthetic Premium Protection Motor Oil (AMO)

    Formulated for use in both gasoline and diesel engines. Offers multi-functionality and excellent wear protection. Ideal for applications where the extra protection of a higher viscosity oil is desired. ...

  • Synthetic Heavy-Duty Diesel & Marine Motor Oil SAE 15W-40 (AME) Synthetic Heavy-Duty Diesel & Marine Motor Oil SAE 15W-40 (AME)

    AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil (AME) is a premium diesel oil providing excellent performance in all types of diesel engines where highly effective control of wear and deposits is vital. Built with heavy-duty dispersant/detergent add ...

  • SAE 60 Synthetic Racing Oil (AHR) SAE 60 Synthetic Racing Oil (AHR)

    AMSOIL SAE 60 Synthetic Super Heavy Weight Racing Oil is designed for high horsepower racing engines, typically supercharged and alcohol-burning or nitro-fueled, and requiring a high viscosity oil to resist the thinning effects of fuel dilution. ...

  • European Car Formula Synthetic 5W-40 Motor Oil (AFL) European Car Formula Synthetic 5W-40 Motor Oil (AFL)

    AMSOIL European Car Formula Synthetic 5W-40 Motor Oil (AFL) is specially formulated for the lubrication needs of modern European gasoline and diesel cars and light trucks. Formulated with advanced AMSOIL ... ...

  • Formula 4-Stroke® Power Sports 0W-40 Synthetic Motor Oil Formula 4-Stroke® Power Sports 0W-40 Synthetic Motor Oil

    AMSOIL Formula 4-Stroke® Power Sports Synthetic Motor Oil (AFF) is specially formulated for ATVs, UTVs, snowmobiles and other power sports applications. ...

  • Synthetic 10W-30/SAE 30 Heavy Duty Diesel Oil (ACD) Synthetic 10W-30/SAE 30 Heavy Duty Diesel Oil (ACD)

    AMSOIL Synthetic 10W-30/SAE 30 Diesel Oil (ACD) is formulated with premium synthetic base oils that exceed both 10W-30 multi-grade and SAE 30 straight-grade viscosity requirements for outstanding ...

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