Diesel engine oil for marine trunk piston engines. Mobilgard M330 is one of ExxonMobil’s premium engine oils for medium-speed trunk piston engines with extra high performance. The Mobilgard M30 series is designed to meet the needs of engines operating on heavy fuel oil, and it has very good properties for engine cleanliness, especially in the crankcase, camshaft, ring belt, and piston crown.

SAE 30 | Sulfated Ash, wt%, ASTM D874 3.8 | Flash Point, Cleveland Open Cup, °C, ASTM D92 244 | Kinematic Viscosity @ 100 C, mm2/s, ASTM D445 12 | Pour Point, °C, ASTM D97 -6 | Specific Gravity, 15.6 C/15.6 C, ASTM D4052 0.907 | Total Base Number, mgKOH/g, ASTM D2896 30 | Viscosity Index, ASTM D2270 107