Gasoline additive composition.

摘要

A gasoline additive composition is disclosed comprising an ester, and at least one dispersant component selected from a monosuccinimide, a bissuccinimide, an alkylamine of average molecular weight 500 - 5000 having a polyolefine polymer as an alkyl group, and a benzylamine derivative of average molecular weight 500 - 5000. The composition may further comprise a polyoxyalkylene glycol or derivative thereof, and/or a lubricant oil fraction of viscosity in the range 3 - 35 mm<2>/s (100 DEG C). The composition has utility in preventing or reducing undesired deposits on the surfaces of intake valves of an automobile engine.