发动机是汽车的心脏,它分汽油机和柴油机,发动机机油除了润滑外,还对发动机的冷却、冲洗、密封起重要作用。所以发动机对机油要求很严,它必须具有台适的粘度和粘温特性,良好的热氧化稳定性和抗磨损性,还必须具有较好的酸中和性以及抗腐 Engine is the heart of the car, it is divided into gasoline engine and diesel engine, engine oil in addition to lubrication, but also on the engine cooling, washing, sealing play an important role. Therefore, the engine is very strict on the oil, it must have suitable Taiwan viscosity and temperature properties, good thermal oxidation stability and abrasion resistance, but also must have good acid neutrality and corrosion