Patent ID: 6750184
Filing Date: 2004-06-15
Classification: C10M,C10N

Abstract:
A composition which comprises:a) a base oil of suitable viscosity for lubricating internal combustion engines; b) at least one phenol of the formula: â€ƒwherein R1 represents branched C8-C22alkyl; c) at least one aromatic amine of the formula: â€ƒwherein R1 and R2 represent hydrogen or together represent the group: and one of R3 and R3â€² represents hydrogen and the other one C2-C30alkyl or both R3 and R3â€² represent C2-C30alkyl; andd) at least one zinc dithiophosphate of the formula â€ƒwherein R1 and R2 represent straight chained or branched C3-C20alkyl.