| abstract |
Provided is a lubricant oil composition which is capable of exhibiting good wear resistance in a high temperature region in which an oil film does not tend to be retained. The lubricant oil composition comprises (A) a base oil, (B) one or more compounds selected from (B1) zinc dithiophosphate and (B2) sulfurized olefin, (C) a sarcosine compound, and (D) thiophosphoric ester or an amine salt thereof, wherein (A1) a high viscosity base oil having a 100°C kinematic viscosity of 25 mm2/s or more is combined as the (A) base oil. |