| abstract |
To provide an engine oil composition having wear resistance, heat resistance and durability equal to or higher than that of a conventional engine oil without increasing the sulfur compound even if the engine oil has a low phosphorus formulation. . In a lubricating base oil, as a component (A), the following general formula (1): [Chemical 1] (In the formula, R 1 and R 2 represent a hydrocarbon group, and a represents a number of 0 to 1/3.) Zinc dithiophosphate represented by the formula: 100 to 500 ppm by mass as phosphorus content, and 0.01 to 20% by mass of a reaction product of a divalent or higher hindered alcohol and a monocarboxylic acid having 8 or more carbon atoms as the component (B). Contains engine oil composition. [Selection figure] None |