| abstract |
Lubricant and fuel compositions contain a combination of an organo, ring-substituted diphenyl sulfide, e.g. a monoalkyldiphenyl sulfide; a succinic dispersant component which is a polymer-substituted succinimide, succinamide and/or succinic acid ester; a dithiophosphate, e.g., a zinc dithiophosphate. The compositions have superior antiwear and extreme pressure properties. |