In order to further improve the fuel economy of automotive,the energy-saving engine oil specification GF-6 has been issued by ILSAC recently.The testing duration and testing cost of GF-6 engine oil energy-saving bench test are long and expensive.In order to improve the screen efficiency of the developing GF-6 engine oils,tribological simulation tests were developed to evaluate the lubrication property of the GF-6 oils.The correlation between simulation test and bench test was studied by using the comprehensive analysis method.Results show that synergy effects between oil additives play an important influence on the fuel saving rate and the tribological behaviors of engine oils.Lower viscosity oil GF-6 0W-16 having more organic molybdenum additive presents much lower friction coefficient than reference oil GF-5 0W-20.Testing temperature can induce organic molybdenum additive to reduce the friction coefficient further.The compr ehensive analysis method of the tribological simulation tests developed can better predict the results of GF-6 engine oil energy-saving bench test.