Keep your motorcycles engine and drivetrain in tip top shape with Penrite MC4-ST Mineral 15W-50 motorcycle engine oil. This premium mineral, 15W-50, non-friction modified engine oil is formulated using high quality mineral base oils and Penrites superior FULL ZINC anti wear additives package to provide the ultimate in performance end protection for your engine, gearbox and clutch. Penrite MC4-ST Mineral 15W-50 shear free formula maintains engine oil viscosity to keep oil in spec for longer and the increased operating temperature viscosity provides extra protection in even the most severe service applications. Penrite MC4-ST Mineral 15W-50 suitable for use in four stroke road, sport, dirt and endurance bikes where JASO MA, API SL/CG-4 or earlier specification 15W-40, 20W-40 or 15W-50 engine oil is recommended. Penrite MC-4ST Mineral 15W-50 can also be used in ATVs, quad bikes and scooters that require this specification of engine oil to be used. Safe to use with petrol, racing and other conventional fuel types To find the engine oil type and weight suggested for your vehicle check with your manufacturer, vehicle user manual, your local mechanic or head in-store and talk to one of our friendly team.