| abstract |
The present invention provides a lubricating oil composition having excellent load resistance and wear resistance as well as an effect of reducing friction because of its low viscosity and high oil film strength. SOLUTION: Group 1, Group 2, Group 3 refined mineral oils and Group 4 polyalphaolefins singly or mixed base oils as defined in the API base oil category, as well as group 5 A mixed base oil selected from those obtained by mixing a base oil selected from the following: an organic compound having sulfur in the molecule, a kinematic viscosity at 100 ° C. of 2 to 30 mm 2 / s as a characteristic value, and a viscosity index A lubricating oil composition characterized by having an oil film strength of 95 to 200, initial seizure load (ISL) of shell 4 ball load resistance test (ASTM D2783 method) of 1260 (N) or more. |