The use of hydrogenation base oil with imported composite additives refined to reconcile. The excellent low temperature performance, high temperature lubricating, anti oxygen excellent, maintain stable oil pressure. ] excellent clean dispersion properties, effectively inhibit the production of sludge, coke, make the engine more clean, so that oil is not easy to aging, prolong the service life of the engine. ] applicable to the requirements of the vehicle using API& nbsp; & amp; nbsp; CF-4 level a variety of imports, domestic high load, high power overload heavy vehicles, trucks, buses and other vehicles, turbocharged diesel engine lubrication.