AMSOIL Performance Testing & Validation
AMSOIL products are subjected to extensive industry-standard testing to validate performance claims related to wear protection, oxidation resistance, deposit control, piston cleanliness, viscosity retention, and engine durability. Independent laboratory testing using ASTM, API, ILSAC, and OEM test procedures demonstrates the ability of AMSOIL synthetic lubricants to exceed many industry performance requirements.
ASTM and Industry Testing Standards AMSOIL performance claims are supported by recognized testing methods including:
These tests are designed to simulate real-world operating conditions while providing repeatable, measurable performance results.
Wear Protection Validation:
In the ASTM D6891 Sequence IVA wear test, AMSOIL Signature Series demonstrated average cam wear of only 20.28 microns compared to the industry limit of 90 microns, delivering significantly greater wear protection than required for API specifications.
Sequence IIIH Oxidation and Viscosity Testing:
The Sequence IIIH engine test evaluates oil oxidation resistance, viscosity increase, and piston cleanliness under severe high-temperature operating conditions. AMSOIL Signature Series demonstrated only a 0.1% viscosity increase during the standard test and maintained performance even when the test duration was doubled.
Low-Speed Pre-Ignition (LSPI) Protection:
Modern turbocharged gasoline direct-injection engines are vulnerable to LSPI events that can cause catastrophic piston damage. AMSOIL Synthetic Motor Oils achieved zero LSPI events during required testing protocols designed to evaluate protection against this phenomenon.
Deposit and Sludge Control:
Independent TEOST 33C testing demonstrated superior deposit control performance from AMSOIL High-Mileage Synthetic Motor Oil when compared to leading competitive formulations. AMSOIL products are engineered to help maintain cleaner pistons, rings, and engine components throughout extended service intervals.
Why Testing Matters:
Industry-standard testing provides measurable validation of lubricant performance. AMSOIL utilizes recognized ASTM, API, ILSAC, and OEM testing procedures to verify protection against wear, deposits, oxidation, sludge formation, viscosity breakdown, and other factors that impact engine life and reliability.
Learn More About AMSOIL Products:
Explore AMSOIL Signature Series, OE, XL, Heavy-Duty Diesel, Motorcycle, Marine, and Powersports lubricants designed to deliver premium synthetic protection for demanding applications.
ASTM and Industry Testing Standards AMSOIL performance claims are supported by recognized testing methods including:
- ASTM D6891 Sequence IVA Wear Test
- ASTM D8111 Sequence IIIH Oxidation & Viscosity Test
- ASTM D6335 TEOST Deposit Control Test
- ASTM D6593 Oil Screen Plugging Test
- LSPI Testing for dexos1 Gen 2 and API SP requirements
- ASTM D2570 Corrosion Testing
- ASTM D7583 Cavitation Testing
These tests are designed to simulate real-world operating conditions while providing repeatable, measurable performance results.
Wear Protection Validation:
In the ASTM D6891 Sequence IVA wear test, AMSOIL Signature Series demonstrated average cam wear of only 20.28 microns compared to the industry limit of 90 microns, delivering significantly greater wear protection than required for API specifications.
Sequence IIIH Oxidation and Viscosity Testing:
The Sequence IIIH engine test evaluates oil oxidation resistance, viscosity increase, and piston cleanliness under severe high-temperature operating conditions. AMSOIL Signature Series demonstrated only a 0.1% viscosity increase during the standard test and maintained performance even when the test duration was doubled.
Low-Speed Pre-Ignition (LSPI) Protection:
Modern turbocharged gasoline direct-injection engines are vulnerable to LSPI events that can cause catastrophic piston damage. AMSOIL Synthetic Motor Oils achieved zero LSPI events during required testing protocols designed to evaluate protection against this phenomenon.
Deposit and Sludge Control:
Independent TEOST 33C testing demonstrated superior deposit control performance from AMSOIL High-Mileage Synthetic Motor Oil when compared to leading competitive formulations. AMSOIL products are engineered to help maintain cleaner pistons, rings, and engine components throughout extended service intervals.
Why Testing Matters:
Industry-standard testing provides measurable validation of lubricant performance. AMSOIL utilizes recognized ASTM, API, ILSAC, and OEM testing procedures to verify protection against wear, deposits, oxidation, sludge formation, viscosity breakdown, and other factors that impact engine life and reliability.
Learn More About AMSOIL Products:
Explore AMSOIL Signature Series, OE, XL, Heavy-Duty Diesel, Motorcycle, Marine, and Powersports lubricants designed to deliver premium synthetic protection for demanding applications.