LUBRICATING OIL COMPOSITION

摘要

A lubricating oil composition which comprises a lube base oil and, incorporated therein, an imide compound, an amide compound, and an aliphatic amine compound. The amount of the imide compound, in terms of nitrogen amount, is 300-1,000 mass ppm of the whole composition. The amount of the amide compound, in terms of nitrogen amount, is 380-1,300 mass ppm of the whole composition. The amount of the aliphatic amine compound, in terms of nitrogen amount, is 35-360 mass ppm of the whole composition.