Patent ID: 9034809
Filing Date: 2015-05-19
Classification: C10M,C10N

Abstract:
1. A method for lubricating a driveline device comprising supplying to the driveline device a lubricating composition comprising an oil of lubricating viscosity and 0.05 wt % to 5 wt % of an antiwear package, wherein the antiwear package comprises: (a) 0.25 to 1 wt % of a derivative of C11 to C18 ester or imide derivative of tartaric acid, (b) 0.05 to 2.5 wt % of a phosphorus compound, wherein the phosphorus compound is an amine of a phosphorus compound that is either: (c) 0.25 wt % to 3.1 wt % of an organo-sulphide comprising at least one of a polysulphide, thiadiazole compound, or mixtures thereof; and wherein the lubricating composition has a sulphur-content of 0.8 wt % to 2.5 wt % of the lubricating composition.