LUBRICANT COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a lubricant composition capable of maintaining extreme pressure property, abrasion resistance and fuel-saving performance for a long period of time.SOLUTION: There is provided a lubricant composition which comprises: a mixed base oil containing 70 mass% or more and 99.5 mass% or less of a wax isomerized base oil having a kinematic viscosity at 100°C of 10 mm/s or less, and 0.5 mass% or more and 30 mass% or less of an ester-based base oil having a kinematic viscosity at 100°C of 1 mm/s or more and 20 mm/s or less and a viscosity index of 130 or more; and 0.5 mass% or more and 20 mass% or less of a dispersion type polymethacrylate-based viscosity index improver having a weight average molecular weight of 30000 or more and 400000 or less based on the total amount of the composition.SELECTED DRAWING: None