LEAD-FREE FUEL COMPOSITION, AND METHODS FOR IMPROVING THE OCTANE INDEX OF A LEAD-FREE GASOLINE, AND FOR REDUCING ADMISSION VALVE DEPOSITS IN AN INTERNAL FUEL ENGINE.

摘要

A fuel composition is provided that contains a major amount of a mixture of hydrocarbons in the gasoline boiling range and a minor amount of a certain aniline additive compound. Use of such aniline additive compound in a combustion engine is also provided.