Sinopec Marine Trunk Piston Engine Oil 4012 is prepared from paraffinic mineral base stock by blending with selected multiple additives of superior performance. The product is designed and formulated for lubrication in marine medium-speed diesel engine which used high sulfur content fuel. Especially suitable for the working temperature and pressure increased.

Sinopec Marine Trunk Piston Engine Oil 3012 is prepared from paraffinic mineral base stock by blending with selected multiple additives of superior performance. The product is designed and formulated for lubrication in marine four-stroke mediumspeed trunk piston diesel engine which used low sulfur content fuel and shows good economic efficiency.