| 摘要 |
PROBLEM TO BE SOLVED: To provide a lubricant composition having high abrasion resistance and low copper elution properties.SOLUTION: The lubricant composition is manufactured by blending additive agents with a base oil, and the additive agents are (a) at least any of one selected from alkaline earth metal sulfonate, alkaline earth metal salicylate and alkaline earth metal phenate, (b) a sulfur-containing phosphorus compound and (c) a thiadiazole compound, and the product of mass of the (c) component in the composition (mass%) and mass of the phosphorus element in the (b) component (mass ppm), ((c)×P), is 1 to 50. |
