LUBRICANT OIL COMPOSITION

摘要

The present invention addresses the problem o f providing a lubricant oil composition, in particular a lubricant oil composition maximally exhibiting a iriction-reducing effect. This lubricant oil composition i s characterized by containing 3 mass% or less o f a metal salicylate-based depurant (B), in terms of the amount of alkali metal or alkaline earth metal, on the basis of the total amount of the composition, in a base oil (A) for which the sulfur content is 0.03 mass% or higher and the mass ratio between the aromatic content (%C A ) and the sulfur content [%C A (mass%)/sulfur content (mass%)] is 30 or lower.