AMSOIL SIGNATURE SERIES 5W-30 100% SYNTHETIC MOTOR OIL 3.78LT ASL1G

AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil – Maximum Protection & Extended Drain Intervals

AMSOIL Signature Series 5W-30 is an advanced 100% synthetic high-performance engine oil, designed for maximum wear protection, excellent engine cleanliness and extended drain intervals.

It delivers outstanding performance in modern petrol engines, including engines with turbo, and is ideal for demanding driving, heavy loads and extended use.

Under normal operating conditions, it provides engine protection for up to 40,000 km or 1 year.

Key Advantages

•  Up to 75% more protection against wear and loss of power
•  Up to 72% better turbo protection compared with GM dexos1 Gen 2 requirements
•  Up to 50% greater cleaning ability compared with conventional synthetic oils
•  Up to 28% better acid neutralisation compared with leading competitor products
•  Engine protection for up to 40.000 km

Wear Protection

AMSOIL Signature Series creates a strong lubricating film that keeps metal surfaces apart, drastically reducing wear on critical components such as camshafts, pistons and springs.

^A Based on independent testing of AMSOIL Signature Series 0W-20 in ASTM D6891, as required by the API SN specification.

Better Start-up Protection

The advanced formulation offers excellent fluidity at low temperatures, ensuring faster oil circulation at start-up and reduced wear in the first critical seconds of operation.

* Based on independent third-party testing in the ASTM D5293 Cold Crank Simulator, as required by SAE J300.

** Trademarks and images are the property of their respective owners and do not imply affiliation or endorsement.

LSPI Protection

AMSOIL Signature Series provides 100% protection against LSPI (Low-Speed Pre-Ignition), a phenomenon that can cause serious damage to modern small-displacement turbo engines.

^B Based on zero LSPI events in five consecutive tests of AMSOIL Signature Series, XL and OE 5W-30 Motor Oil in the LSPI engine test, as required by the GM dexos1 Gen 2 specification.

Turbo Protection

Provides up to 72% better turbocharger protection, reducing deposits and thermal stress under demanding operating conditions.

^C Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.

Viscosity Control & Thermal Stability

Effectively resists viscosity increase under extreme operating conditions, maintaining stable performance and protection throughout its service life.

^GG Based on independent testing of AMSOIL Signature Series 5W-30 in the Sequence IIIH Engine Test (ASTM D8111), as required by the ILSAC GF-6 and API SP specifications.

Engine Cleanliness

The enhanced formulation with detergent additives helps keep the engine cleaner and performing better for longer.

•  Up to 50% greater cleaning ability
•  Up to 90% better protection against sludge
•  Pistons up to 40% cleaner compared with industry standards

Even after extended use, AMSOIL Signature Series maintains excellent piston cleanliness and low deposit formation.

^FF Based on independent testing of AMSOIL Signature Series 5W-30 in the Sequence IIIH Engine Test (ASTM D8111), as required by the ILSAC GF-6 and API SP specifications.

^DD Based on independent testing of AMSOIL Signature Series 5W-30 in the ASTM D6593 engine test for oil filter plugging, as required by the API SN specification.

Long-Distance Performance

In independent tests of up to 160,000 km, AMSOIL Signature Series demonstrated superior engine protection and kept components in excellent condition.

* Tests were carried out by an independent laboratory, using AMSOIL Signature Series 5W-30 and a leading synthetic-blend 5W-30 engine oil, in Ford F-150 trucks with 3.5L twin-turbo engines.

Ideal for:

•  modern petrol engines
•  turbo engines
•  demanding driving
•  extended oil change intervals

Test Notes

The results are based on independent laboratory tests (ASTM, GM, Sequence IIIH etc.) and comparisons with industry standards and competitor products.