Patent ID: 8877694

Claim:
A lubricating composition comprising: (a) an oil of lubricating viscosity; (b) an asphaltene dispersant comprising an amide group; and (c) a detergent derived from an alkyl phenol; wherein the asphaltene dispersant comprises: (i) a compound represented by formula (I); wherein each R 1 is independently a hydrogen or a hydrocarbyl group containing 1 to 250 carbon atoms, so long as at least one R1 is a hydrocarbyl group; each R 2 is independently a hydrogen or a hydrocarbyl group containing 1 to 10 carbon atoms; each R 3 is independently a hydrocarbylene group containing from 1 to 10 carbon atoms; each R 4 is independently a hydrocarbyl group containing from 1 to 50 carbon atoms; x is an integer from 0 to 6; y is an integer from 1 to 4; and z is an integer from 0 to 6.