abstract |
The lubricating oil composition for an internal combustion engine of the present invention is a lubricating oil base oil having a urea adduct value of 4% by mass or less and a viscosity index of 100 or more, an ashless antioxidant that does not contain sulfur as a constituent element, and an ashless oxidation containing sulfur as a constituent element. It is characterized by containing at least 1 sort (s) chosen from an inhibitor and an organic molybdenum compound. |