| abstract |
Provided by the present invention is a lubricating oil composition having a low friction coefficient (traction coefficient) and a superior fluidity at low temperature, suitable as a transmission oil including an automatic transmission oil, by using a base oil which contains a mineral oil satisfying the conditions that (1) kinetic viscosity at 100°C is in the range of 5 mm 2 /s or more to 8 mm 2 /s or less, (2) viscosity index is 130 or more, and (3) %C P by a ring analysis (n-d-M method) is 80 or more. |