Castrol 4T 20W-50 Motorcycle Oil (QT) (06102) 4-stroke motorcycle oil delivers durable protection under severe high-torque, high-stress conditions. Castrol 4T 20W-50 Motorcycle Oil is designed to provide the maximum protection against viscosity and thermal breakdown. This motorcycle oil provides exceptional engine wear protection and high film strength. Formulated with specialized additives designed to thwart ring sticking and deposit build-up. Specification: API SG, JASO MA-2