Different vehicles endure different challenges depending on their design and usage. AMSOIL designes motor oil to target those unique conditions and maximize power, performance and protection.
Motor-oil formulations continue to evolve as new automotive technologies emerge and new specifications arrive to support them. ILSAC GF-7 and API SQ are heralding another step in the evolution of motor oil. AMSOIL is prepared with products that already meet or exceed the updated standards, and AMSOIL Signature Series 100% Synthetic Motor Oil is undergoing a revolutionary reformulation that promises to usher in the next generation of motor-oil technology.

This overview of AMSOIL gasoline motor-oil lines includes what makes them specialized and who they’re designed for.
AMSOIL Signature Series 100% Synthetic Motor Oil
AMSOIL Signature Series 100% Synthetic Motor Oil is engineered for those seeking maximum protection and performance. It’s precision-formulated with cutting-edge technology and a passion for making the world’s best motor oil.
• 75% more engine protection against horsepower loss and wear.1
• Protects turbochargers 72% better than required2 by the GM dexos 1 Gen 2 specification.
• 28% more acid-neutralizing power than Mobil 1.*3
• 50% more cleaning power.4
• Trusted by professional engine builders.
• Guaranteed protection for up to 25,000 miles (40,200 km) or 1 year.

AMSOIL Extended-Life 100% Synthetic Motor Oil
AMSOIL Extended-Life 100% Synthetic Motor Oil is overbuilt for road warriors so they can confidentley drive up to 20,000 miles (32,000 km) or one year5 between oil changes. A proprietary combination of advanced synthetic base oils and a boosted additive package promotes cleanliness and prolonged engine life.
• 20,000 miles (32,000 km) of guaranteed protection between changes.5
• 37% more cleaning power6 to help keep your engine running smoother, longer.
• Protects against LSPI.
• Already meets or exceeds ILSAC GF-7 and API SQ standards.
AMSOIL 100% Synthetic High-Mileage Motor Oil
AMSOIL 100% Synthetic High-Mileage Motor Oil is designed specifically for the unique demands of high-mileage engines, helping extend the life of your vehicle. It delivers purpose-built protection at a time in your vehicle’s life where it could benefit from more-robust maintenance.
AMSOIL High-Mileage Motor Oil provides an added boost of detergents to clean up sludge and deposits left behind from prior use of a lower-quality oil. A robust viscosity provides additional wear protection even after some wear has occurred. Added seal conditioners extend the life of seals from drying, cracking and leaking.
• Unique chemistry for vehicles with over 75,000 miles (120,000 km).
• Boosted detergent and dispersant package.
• Enhanced anti-wear additives.
• Reduced sludge by 67%,7 demonstrating its cleaning power that helps engines last longer and perform better.
• Guaranteed protection for up to 12,000 miles (19,000 km) or 1 year.8
• Already meets or exceeds ILSAC GF-7 and API SQ standards.
AMSOIL OE 100% Synthetic Motor Oil
AMSOIL OE 100% Synthetic Motor Oil delivers 100% synthetic engine protection for advanced automotive technology, including turbos and direct injection. Specifically formulated for the longer drain intervals recommended by original equipment (OE) manufacturers.
• Fights sludge and deposits with 100% synthetic formulation.
• 47% more wear protection9 than required by the GM dexos1 Gen 2 specification.
• 100% protection against LSPI10 in the engine test required by the GM dexos1 Gen 2 specification.
• Already meets or exceeds ILSAC GF-7 and API SQ standards.
AMSOIL 100% Synthetic European Motor Oil
European performance and styling define a culture of exceptional engineering. AMSOIL matches that devotion to precision with lubricants designed for the unique demands of gasoline, diesel and hybrid European vehicles. Its precise formulution of advanced synthetic base oils and premium additives deliver exceptional engine protection without harming emissions systems.
• Designed for the unique demands of gasoline, diesel and hybrid European vehicles.
• European formula features precise blend of synthetic base oils and premium additives.
• Exceptional engine protection without harming emissions systems.
1Based on independent testing of AMSOIL Signature Series 0W-20 using the ASTM D6891 standard test. 2Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test. 3Based upon independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. Oils purchased in July 2020. 4Compared to AMSOIL OE Synthetic Motor Oil. 5Normal Service – Up to 20,000 miles (32,000 km) or one year, whichever comes first, in personal vehicles not operating under severe service. 6Compared to AMSOIL OE Synthetic Motor Oil. 7Based on independent testing of AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil using a modified Sequence VH Test (ASTM D8256). 8Normal Service – Up to 12,000 miles or one year, whichever comes first, in personal vehicles not operating under severe service. 9Based on independent testing of OE 0W-20 in the Peugeot TU3M Wear Test as required by the dexos1 Gen 2 specification. 10Based on zero LSPI events in five consecutive tests of AMSOIL OE 5W-30 Motor Oil in the LSPI engine test required by the GM dexos1 Gen 2 specification.



