4T Motorcycle Oils

AMSOIL 4T synthetic motorcycle oils provide dependable engine, transmission and wet-clutch protection for four-stroke motorcycles and everyday riding applications.

AMSOIL 4T Synthetic Motorcycle Oil is engineered to provide dependable protection for four-stroke motorcycle engines, transmissions and wet-clutch systems. Its 100% synthetic formulation provides excellent wear protection, helps resist viscosity loss and supports smooth transmission and clutch operation.

Browse the AMSOIL 4T motorcycle oil range below for synthetic protection across a wide variety of four-stroke motorcycle applications.

5 Products Found

AMSOIL 4T Synthetic Motorcycle Oil

AMSOIL 4T Synthetic Motorcycle Oil provides dependable synthetic protection for four-stroke motorcycles used for everyday street, touring and recreational riding. It is engineered to protect motorcycle engines while also addressing the lubrication requirements of transmissions and wet clutches in applications where these components share the same oil.

Synthetic Protection for Four-Stroke Motorcycles

Motorcycle engines can operate at high engine speeds and temperatures, while transmission gears can subject the lubricant to significant mechanical shear. AMSOIL 4T Synthetic Motorcycle Oil is formulated to resist viscosity loss, protect against wear and maintain dependable lubrication throughout the service interval.

For motorcycles using a wet clutch, lubricant friction characteristics are also important. The oil must protect lubricated components without interfering with the friction required for consistent clutch engagement and operation.

Understanding JASO Motorcycle Oil Requirements

Many four-stroke motorcycles specify a JASO MA or MA2 motorcycle oil. These classifications address motorcycle-specific friction requirements and are particularly relevant to motorcycles where the engine, transmission and wet clutch share a lubricant.

Learn what these classifications mean in our JASO Motorcycle Oil Standards Guide, including the differences between MA, MA1, MA2 and MB.

Find the Correct Oil for Your Motorcycle

Always check the viscosity and performance requirements specified by the motorcycle manufacturer. Use the AMSOIL Vehicle Product Finder to identify suitable AMSOIL oils and other lubricants for your motorcycle.