AMSOIL XL Synthetic Motor Oil: Made Stronger for Longer
Guide to AMSOIL XL Synthetic Lubricants
AMSOIL XL Extended Life Synthetic Motor Oils provide better wear control, high- and low-temperature protection and increased fuel economy compared to conventional oils. Formulated with friction modifiers, AMSOIL XL Synthetic Motor Oils are fuel-efficient oils that reduce friction-related energy loss. They provide better fuel economy compared to conventional, non-fuel-efficient motor oils.
Formulated with extended-drain boost technology, AMSOIL XL Synthetic Motor Oils provide superior performance for up to 20,000 Mile (32,000 KM) or 1 year. Available in these popular multi-viscosities: 0W-20, 5W-20, 5W-30, 10W-30, and 10W-40
AMSOIL XL provides:
Extended drain intervals up to 20,000 Mile (32,000 KM) or 1 year
Maintains viscosity under extreme conditions
Unique chemistry to protect against low-speed pre-igntion (LSPI)
Boosted additive package that neutralizes acids and resists sludge, corrosion and carbon deposits
Why does this matter?
AMSOIL Extended Life Motor Oil is an excellent choice for drivers seeking extended drains and outstanding engine protection at a lower price than our ultra-premium Signature Series Synthetic Motor Oil.
Cold Pour Test: AMSOIL Synthetic Oil versus Conventional Oil
Torque Converter Heat
Motorcycle Shop Trusts AMSOIL
Extended Life Synthetic Motor Oil - Excellent Engine Protection and Performance
XL 0W-20 Synthetic Motor Oil
XL 5W-20 Synthetic Motor Oil
XL 5W-30 Synthetic Motor Oil
XL 10W-30 Synthetic Motor Oil
XL 10W-40 Synthetic Motor Oil
Extended Life Synthetic Motor Oil - Resists Oil Breakdown
XL Synthetic Motor Oil maintains its fluidity (viscosity) under the most extreme conditions. Some oils break down and
significantly increase in viscosity after extended periods of high-temperature operation. These changes can cause excessive oil consumption, engine deposits, accelerated wear and difficult cold-starts. The GM Oxidation and Deposit (GMOD) Test consists of a 5.7L V8 engine running at 293°F (100° hotter than normal) for 100 hours. These severe operating conditions test an oils ability to control viscosity increase, deposits and oil consumption. The testing revealed that AMSOIL XL Synthetic Motor Oil provides 64 percent more protection against oil breakdown  than required by the GM dexos1® Gen 2 specification, ensuring protection in extreme temperature.
 Based on independent testing of AMSOIL XL 5W-30 motor oil in the GMOD engine test required for the GM dexos1 Gen2 specification.