Patent ID: 8022021

Claim:
A controlled release gel composition comprising ash producing components and ash free components wherein the gel comprises: 1) an ashless dispersant component comprising the reaction product a polyisobutylene succinic anhydride and a polyamine, wherein the dispersant is present in the gel from 35% to 60% by weight; 2) an ashless acid component comprising maleic styrene copolymers, esters and partial esters thereof and mixtures thereof, where the ashless acid is present in the gel from 7.5% to 15% by weight; 3) an overbased metal detergent component, comprising an overbased calcium alkylbenzene sulfonate detergent, wherein the detergent is present in the gel from 17.2% to 21.5% by weight; and 4) optionally other lubricant additives; resulting in a lubricant additive controlled release with a reduced level of ash, metal and SAPS producing components for delivery of additives into a lubricant.