The efficiency of automobile transmission system would directly affect the vehicle fuel consumption

the efficiency of transmission plays an important role in the transmission system

by studying the effects of different contrast of lubricating oil and additive on the transmission system

a reference scheme selection of automobile lubricating oil is provided.The experiment shows that added the OCP could pronounced improve the viscosity-temperature property

the transmission efficiency associated with the viscosity index

efficiency is improved with the speed increased

but when the speed is too high

the efficiency decreased

the reason is that oil mixing power losing ratio contributed more than oil on transmission efficiency rate.