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AMSOIL Signature Series Synthetic SAE 0W-40 Motor Oil

  • 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.

AMSOIL Signature Series Synthetic SAE 10W-30 Motor Oil

  • 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.

AMSOIL Signature Series Synthetic SAE 5W-20 Motor Oil

  • 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.

AMSOIL Signature Series Synthetic SAE 5W-30 Motor Oil

  • 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.

AMSOIL Signature Series Synthetic SAE 5W-50 Motor Oil

  • 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.

AMSOIL Synthetic Premium Protection SAE 10W-40 Motor Oil

  • 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

AMSOIL Synthetic Premium Protection SAE 20W-50 Motor Oil

  • 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
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