• 75% more engine protection against horsepower loss and wear.¹
• 50% more cleaning power vs. AMSOIL OE Motor Oil
• Protects turbochargers 72% better than required² by the GM dexos1 Gen 2 specification.
• 28% more acid-neutralizing power than Mobil 1.³
• Trusted by professional engine builders
• Guaranteed protection for up to 25,000 miles or 1 year

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.

• 75% more engine protection against horsepower loss and wear.¹
• 50% more cleaning power vs. AMSOIL OE Motor Oil
• Protects turbochargers 72% better than required² by the GM dexos1 Gen 2 specification.
• 28% more acid-neutralizing power than Mobil 1.³
• Trusted by professional engine builders
• Guaranteed protection for up to 25,000 miles or 1 year

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.

• 37% more cleaning power¹ to help keep your engine running smoother, longer.
• Protects against LSPI
• 20,000 miles of guaranteed protection between changes²

¹Compared to AMSOIL OE Synthetic Motor Oil.
²Normal Service – Up to 20,000 miles (32,000 km) or one year, whichever comes first, in personal vehicles not operating under severe service.

• 37% more cleaning power¹ to help keep your engine running smoother, longer.
• Protects against LSPI
• 20,000 miles of guaranteed protection between changes²

¹Compared to AMSOIL OE Synthetic Motor Oil.
²Normal Service – Up to 20,000 miles (32,000 km) or one year, whichever comes first, in personal vehicles not operating under severe service.

• 37% more cleaning power¹ to help keep your engine running smoother, longer.
• Protects against LSPI
• 20,000 miles of guaranteed protection between changes²

¹Compared to AMSOIL OE Synthetic Motor Oil.
²Normal Service – Up to 20,000 miles (32,000 km) or one year, whichever comes first, in personal vehicles not operating under severe service.

• Fights sludge and deposits with 100% synthetic formulation.
• 47% more wear protection¹ than required by the GM dexos1 Gen 2 specification.
• 100% protection against LSPI² in the engine test required by the GM dexos1 Gen 2 specification.

¹Based on independent testing of OE 0W-20 in the Peugeot TU3M Wear Test as required by the dexos1 Gen 2 specification.
²Based 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.

• Fights sludge and deposits with 100% synthetic formulation.
• 47% more wear protection¹ than required by the GM dexos1 Gen 2 specification.
• 100% protection against LSPI² in the engine test required by the GM dexos1 Gen 2 specification.

¹Based on independent testing of OE 0W-20 in the Peugeot TU3M Wear Test as required by the dexos1 Gen 2 specification.
²Based 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.

• Fights sludge and deposits with 100% synthetic formulation.
• 47% more wear protection¹ than required by the GM dexos1 Gen 2 specification.
• 100% protection against LSPI² in the engine test required by the GM dexos1 Gen 2 specification.

¹Based on independent testing of OE 0W-20 in the Peugeot TU3M Wear Test as required by the dexos1 Gen 2 specification.
²Based 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.

• High-zinc formula guards against wear
• Ideal for flat-tappet cams
• Resists deposits to help keep engines clean
• Convenience of use for gas and diesel engines

• High-zinc formula guards against wear
• Ideal for flat-tappet cams
• Resists deposits to help keep engines clean
• Convenience of use for gas and diesel engines