Castrol Act>evo 4T 10W-40 is a latest generation, part-synthetic engine oil developed specifically for 4-stroke motorcycle engines. It is uniquely formulated with Active Protection Molecules (APM) which provide a continuous layer of protection ensuring up to 70% wear reduction when compared to a JASO MA2 motorcycle oil. Castrol Act>evo 4T 10W-40 is uniquely formulated with Trizone Technology™. Trizone testing uses Castrol’s own engine test methods to prove performance in the engine (good detergency and durability), reduced clutch slip and reduced gear pitting.