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Engine Oil

  • AMSOIL Heavy-Duty Diesel Oil

    AMSOIL 10W-30/SAE 30 Synthetic Heavy-Duty Diesel Oil

    Exceeds both 10W-30 multi-grade and SAE 30 straight-grade viscosity requirements. Provides outstanding performance in pre-2007 diesel engines in on-road applications as well as all model-year diesel engines in off-road apps. Also recommended for gasoline...

  • AMSOIL Break-In Oil

    AMSOIL Break-In Oil (SAE 30)

    Formulated without friction modifiers to allow for quick and efficient piston ring seating in new and rebuilt high-performance and racing engines. Contains zinc and phosphorus anti-wear additives to protect cam lobes, lifters and rockers during the...

  • AMSOIL DOMINATOR®

    AMSOIL DOMINATOR® Racing Oil

    Provides superior performance and maximum protection in high-performance and racing applications. DOMINATOR is engineered from advanced synthetic technology to better withstand the elevated rpm, high temperatures and shock-loading common to racing...

  • AMSOIL Heavy-Duty Synthetic Diesel & Marine Oil

    AMSOIL Heavy-Duty Synthetic Diesel and Marine Oil

    Engineered for pre-2007 diesel engines in on-road applications as well as all model year diesel engines in off-road applications. High 12 TBN controls acids from combustion blow-by and EGR. Additives control soot thickening, oxidation and wear. Extended...

  • AMSOIL Heavy-Duty Synthetic Diesel Oil

    AMSOIL Heavy-Duty Synthetic Diesel Oil

    AMSOIL Heavy-Duty Synthetic Diesel Oil is formulated for hard-working equipment. It is engineered to provide 4X better wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222, giving you the edge to keep trucks...

  • AMSOIL OE

    AMSOIL OE Synthetic Motor Oil

    OE Synthetic Motor Oil is for mechanics and drivers seeking peace of mind protection and exceptional value in synthetic motor oil. It delivers 100 percent synthetic engine protection for advanced automotive technology, including turbochargers and direct...

  • AMSOIL Premium Protection Synthetic Motor Oil

    AMSOIL Premium Protection Synthetic Motor Oil

    For use in both gasoline and diesel engines. Offers multi-functionality and wear protection. Ideal for applications where the extra protection of a higher-viscosity oil is desired. Excellent for motor homes and older vehicles, as well as many types of...

  • AMSOIL Series 3000 Synthetic Heavy Duty Diesel Oil

    AMSOIL Series 3000 Synthetic Heavy Duty Diesel Oil

    Engineered for pre-2007 diesel engines in on-road applications as well as all model year diesel engines in off-road applications. Also engineered for all gasoline engines recommending API SL specifications including turbo-charged vehicles. Provides...

  • AMSOIL Max-Duty

    AMSOIL Signature Series Max-Duty Synthetic Diesel Oil

    Protect your investment in diesel power and confidently extend drain intervals with our top-grade synthetic diesel oil. AMSOIL Signature Series Max-Duty Synthetic Diesel Oil delivers 4X better cold-temperature performance when compared to SAE 15W-40 oil...

  • AMSOIL Signature Series

    AMSOIL Signature Series Synthetic Motor Oil

    Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil. The result: engine protection that blows the doors off the highest...