Fuels compositions and methods for using same

Fuel and related compositions – Liquid fuels – Heterocyclic carbon compound containing a hetero ring having...

Reexamination Certificate

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C044S415000, C044S434000, C044S359000

Reexamination Certificate

active

07491248

ABSTRACT:
A fuel composition and methods for using it for controlling deposit formation in a spark-ignition internal combustion engine, such as a direct injection engine, comprising a spark-ignition fuel, a detergent, and a deposit inhibitor compound.

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