Why is AMSOIL good for your engine?
It Outperforms Industry Standards
The Sequence IVA Engine Test simulates extended periods of stop-and-go driving - conditions that encourage engine wear. We used Signature Series 0W-20, the lightest viscosity in the line, to further increase the severity of the test. AMSOIL Signature Series Synthetic Motor Oil provided 75 percent more engine protection against horsepower loss and wear1 than required by the industry standard, extending the life of vital components like pistons and cams.
1 Based on independent testing of AMSOIL Signature Series 0W-20 in ASTM D6891 as required by the API SN PLUS specification.
Occurring in today's advanced engines, low-speed pre-ignition (LSPI) is spontaneous ignition of the fuel/air mixture prior to
spark-triggered ignition. Original equipment manufacturers (OEMs) like GM* have addressed the issue by designing tests to determine a motor oil's ability to prevent LSPI. Signature Series Synthetic Motor oil provided 100 percent protection against LSPI2 - zero occurrences were recorded throughout five consecutive tests.
2 Based on independent testing of AMSOIL Signature Series 5W-30 motor oil, in the LSPI engine test as required for the GM dexos1® Gen 2 specification.
* All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.
AMSOIL fights viscosity breakdown better than the
competition3, providing superior protection of pistons, cams and bearings.
3 Based on independent testing of AMSOIL Signature Series, Schaeffer's Supreme 9000 Full Synthetic, Lucas Synthetic, Valvoline Conventional Daily Protection, Mobil 1 Annual Protection and Penzoil 5W-30 in the Kurt Orbahn Test. Oils purchased on 5/3/18.
AMSOIL Signature Series is fortified with a heavy treatment of detergent additive and it delivers 30 percent more acid neutralizing power4 than Mobil 1, and 36 percent more than Royal Purple, helping engines to
stay clearner, longer.
4 Based upon independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30, Royal Purple High Performance 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. Oils purchased 05/03/18
Signature Series has a uniform structure that limits evaporation and keeps it where it is needed most - protecting your engine. It limits volatility (burn-off) that occurs when oil gets hot, protecting against harmful effects of oil thickening, additive imbalance, higher emissions and oil consumption. Reduces the need for frequent oil top-offs.
AMSOIL Lubricants Provide Well-Balanced Protection
Signature Series' well-balanced formula delivers exceptional protecion in all areas of motor oil performance.
Signature Series protects turbochargers 72 percent better than requiredA by GM dexos1® Gen 2 specification
A Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coaking test.
AMSOIL Signature Series Synthetic Motor Oil provides 75 percent more engine protection against horsepower loss and wear than required by a leading industry standardB, extending the life of vital components
B Based on independent testing in the ASTM D6891 test using AMSOIL Signature Series 0W-20 as worst-case representation.
AMSOIL Signature Series Synthetic Motor Oil has 50 percent more detergentsC to help keep oil passages clean and promote oil circulation. It provides 90 percent better protection against sludgeD.
C vs AMSOIL OE Motor Oil
D Based on
independent testing of AMSOIL Signature Series 5W-30 in the ASTM D6593 engine test for oil screen plugging as required by the API SN specification.
AMSOIL synthetic motor oils achieved 100 percent protection againts LSPI.
Canada
United States