COMPOSITIONS FOR CONTROL OF OCTANE REQUIREMENT INCREASE

摘要

COMPOSITIONS FOR CONTROL OF OCTANE REQUIREMENT INCREASE Fuel additive concentrates for controlling octane requirement increase in internal combustion engines comprising the reaction product of (i) polyamine and (ii) at least one acyclic hydrocarbyl substituted succinic acylating agent; an unhydrotreated poly-.alpha.-olefin; and optionally, a mineral oil having a viscosity index of less than about 90, and a volatility of about 50% or less as determined by a test method described herein.