Patent ID: 8460404

Claim:
A fuel composition comprising (i) a fuel; and (ii) a dispersion wherein the dispersion comprises: (a) an inorganic metal compound; (b) a quaternary salt surfactant comprising the condensation product of (1) a hydrocarbyl substituted acylating agent and a compound having an oxygen or nitrogen atom capable of condensing with said acylating agent and said condensation product further having a tertiary amino group; and (2) a quaternizing agent suitable for converting the tertiary amino group of compound (1) to a quaternary nitrogen, wherein the quaternizing agent comprises dialkyl sulfates, hydrocarbyl substituted carbonates, hydrocarbyl epoxides in combination with an acid, or mixtures thereof; and (c) an organic medium in which the particles of (a) are uniformly dispersed by physical processes, with (b), forming a dispersion.