LUBRICATING OIL COMPOSITION CONTAINING A MIXTURE OF OLEFIN COPOLYMER DISPERSANT-TYPE VISCOSITY IMPROVER AND AMINE COMPOUND

摘要

Disclosed is an internal combustion engine lubricating oil composition which comprises (a) a major amount of an oil of lubricating viscosity; (b) a dispersant-type olefin copolymer VI improver; and (c) a secondary hydrocarbylamine compound, a tertiary hydrocarbylamine compound, or combinations thereof. A method for reducing cam wear using same is also disclosed.