Patent ID: 9321981
Filing Date: 2016-04-26
CPC Classification: C10M,C10N

Claim Text:
1. A lubricating oil composition, comprising: a base oil having a kinematic viscosity as measured at 100° C. of 2 to 8 mm (1) a detergent, comprising a calcium salicylate, the detergent being present in an amount of 0.3 to 1.2 mass % as reduced to sulfated ash, and the detergent having a base value of 150 to 450 mgKOH/g; (2) a zinc dihydrocarbyldithiophosphate in an amount of 0.07 to 0.10 mass % as reduced to phosphorus; (3) a dispersant, comprising a succinimide, in an amount of 0.05 to 0.20 mass % as reduced to nitrogen, wherein the dispersant has an alkenyl group or an alkyl group, and wherein the alkenyl group or the alkyl group has a number average molecular weight of 800 to 3,000; (4) a first ashless antioxidant, comprising a phenol, the first ashless antioxidant being present in an amount of 0.2 to 2.0 mass %; (5) a second ashless antioxidant, comprising an amine, the second ashless antioxidant being present in an amount of 0.2 to 2.0 mass %; (6) a molybdenum dithiocarbamate-based friction modifier comprising, the friction modifier being present in an amount of 0.02 to 0.10 mass % as reduced to molybdenum; wherein the molybdenum dithiocarbamate-based friction modifier is represented by formula (IV): wherein each of R (7) optionally, a viscosity index improver in an amount of 0.02 to 6 mass % as resin amount, wherein a total amount of (4) and (5) is 0.5 to 3.0 mass %, and unit mass % is based on a total amount of the composition.