| abstract |
A lubricating oil composition is provided by mixing a lubricant base oil with components (A) to (C) as follows: n(A) a tertiary amine represented by a formula (1) below,n nwhere: R 1 is a hydrocarbon group having 16 to 22 carbon atoms and R 2 and R 3 independently represent a hydrocarbon group having 1 to 2 carbon atoms, R 2 and R 3 being adapted to form a heterocyclic ring with terminal ends thereof being bonded; n(B) at least one of acid phosphate and acid phosphite; and n(C) at least one of metal sulfonate, metal phenate and metal salicylate. |