关键词: 发动机油, 发动机台架试验, 燃料经济性, 汽油机油, 节能

Abstract: With the strengthening of environmental protection regulation and for saving more fossil energy, the specifications of energy-saving engine oils are keeping update. Therefore, the engine tests for evaluating fuel efficiency of engine oils are also upgrading. The variations of engine oil specifications from GF-1 to GF-5 were illuminated, focusing on GF-5 specification，which started to certificate in 2010. A comparison for the specifications of GF-5 and GF-4 was introduced in detail, such as engine tests, adding bench tests and severer parameter values. The lubricating status, operation conditions, working parameters and characteristics of sequence VIA, VIB and VID engine tests for evaluating the fuel economy of engine oils were described and compared. Finally, the prospect of base stocks production and additives industry with the progress of energy-saving gasoline engine oils was discussed.

Key words: engine oil, engine test, fuel economy, gasoline engine oil, energy conservation