Mobil 1 Racing 4T 10W-40 is an advanced full synthetic motorcycle oil designed primarily for on-road, high-performance, and four-cycle sport bikes; however, it can be used in other types of on- and off-road four-cycle motorcycles that require 10W-40 engine oil. Helps to provide excellent performance by protecting against engine wear, transmission components, and enhanced lubrication to maintain maximum power and acceleration over the life of the engine. Mobil 1 Racing 4T helps to resist oxidation and degradation at high temperatures, while minimizing engine wear at low-temperature startup. Delivers optimized wet-clutch performance and superb shear stability to help resist viscosity shear down. Meets or exceeds the requirements of JASO MA2 and JASO MA.