Ashless Type Engine Oil Compositions for Fuel Efficiency

摘要

More particularly, the present invention relates to an ashless type engine oil composition for improving fuel economy. More specifically, the present invention relates to an ashless type engine oil composition for improving fuel economy, Molybdenum dithiocarbamate, and dihydrocarbyl dithiophosphate metal salt as a friction modifier, thereby protecting the environment from exhaust gas and improving the fuel economy of an automobile.