A multigrade heavy-duty diesel engine lubricant, specifically designed for modern high-speed four-stroke marine diesel engines used in coastal shipping, fishing, and pleasure craft. It is suitable for both modern low-emission engines and older engine types. It meets the requirements of major engine manufacturers such as MTU, VOLVO, MAN, CUMMINS, CATERPILLAR, MACK, IVECO, YANMAR, BAUDOUIN, DEUTZ, PERKINS, DETROIT DIESEL.