| abstract |
Disclosed is a grease composition comprising a base oil, a thickener, and an additive; the base oil having a kinetic viscosity of 20 to 150 mm 2 /s at 40° C., and the additive containing as an essential component 0.05 to 10 parts by weight of a metal salt of a dibasic acid based on 100 parts by weight of the base oil and the thickener, the metal salt of the dibasic acid being represented by the following formula: n n n where M 1 and M 2 represent the same or different alkali metal, and R 1 represents aliphatic hydrocarbon group or an aromatic hydrocarbon group. |