Methods and Uses for Intake-Valve and Direct-Injector Deposit Clean-Up
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United States of America Patent
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Jun 16, 2016
app pub date -
Aug 21, 2014
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Aug 27, 2013
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Abstract
The use as an intake valve deposit clean-up additive in a fuel composition for a port fuel injection spark-ignition internal combustion engine or a fuel injector deposit clean-up additive in a fuel composition for a direct injection spark-ignition internal combustion engine of a combination of: a. at least one hydrocarbyl-substituted aromatic compound; and b. at least one polyalkylene amine.
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