Chevron Oronite Company LLC

Chevron Chemical Company LLC

Stephen M Moore

Edward T Sabourin

Jack E Morris

A unique combination of a certain poly(oxyalkylene) amine and a thiadiazole compound when employed as a fuel additive in a hydrocarbon fuel such as gasoline or diesel fuel will preclude fuel gauge sending units from sustaining sulfur-related corrosion damage or restore fuel gauge sending units, particularly silver-based fuel gauge sending units, in vehicle fuel storage tanks to like-new operational condition. Moreover, a method suitable for use in precluding fuel gauge sending units from sustaining sulfur-related corrosion damage or restoring silver-based fuel gauge sending units in gasoline or diesel vehicle fuel storage tanks to like-new operational condition using the combination of a certain poly(oxyalkylene) amine and a thiadiazole compound as a fuel additive is also described.

Fuel composition for rectifying fuel gauge sending unit problems

A fuel composition comprising a major amount of hydrocarbons boiling in the gasoline or diesel range and about 2,050 to about 10,000 parts per million by weight of a hydrocarbyl-substituted polyoxyalkylene amine having the formula:

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Woodacre, CA, United States of America

Stephen M Moore