ORI-inhibited motor fuel composition

Details ORI-inhibited motor fuel composition ORI-inhibited motor fuel composition

1989-02-06

1990-11-06

Medley, Margaret B.

Fuel and related compositions

Liquid fuels

Heterocyclic carbon compound containing a hetero ring having...

44331, 44459, 548548, C10L 122

Patent

active

049683217

ABSTRACT:
A motor fuel composition which inhibits engine ORI and intake valve deposit formation and sticking comprises a mixture of hydrocarbons boiling in the range of 90.degree. F.-450.degree. F. and (I) the reaction product of a hydrocarbyl-substituted dibasic acid anhydride and a polyoxyalkylene diamine; (II) a polymeric component which is a polyolefin polymer, copolymer, or the corresponding aminated or hydrogenated polymer or copolymer, or mixtures thereof, of a C.sub.2 -C.sub.10 hydrocarbon; (III) a polyalkylene glycol having a molecular weight in the range of 500-2000; and (IV) a lubricating oil composition.

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