The composition of the present invention related to a quaternary ammonium salt detergent and the use of such quaternary ammonium salt detergents in a fuel composition to reduce diesel injector deposits and remove or clean up existing deposits on the diesel injectors.

The present disclosure provides fuel additives including quaternary ammonium salt mixtures, fuel compositions including such additives, and methods of improving performance of fuel injector using such additives.

A pyromellitamide or benzamide, previously disclosed for use as a gelling agent in a downhole fluid, is added to a hydrocarbon fluid for use as a friction reducing agent, for example in a motor or pipeline. An example pyromellitamide friction reducing agent may have the general formula of:

##STR00001##

with R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each being an organic group. A further use as a viscosity reducing agent in diluted bitumen is also disclosed.

A pyromellitamide or benzamide, previously disclosed for use as a gelling agent in a downhole fluid, is added to a hydrocarbon fluid for use as a friction reducing agent, for example in a motor or pipeline. An example pyromellitamide friction reducing agent may have the general formula of:

##STR00001##

with R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each being an organic group. A further use as a viscosity reducing agent in diluted bitumen is also disclosed.

The composition of the present invention related to a quaternary ammonium salt detergent and the use of such quaternary ammonium salt detergents in a fuel composition to reduce diesel injector deposits and remove or clean up existing deposits on the diesel injectors.

The composition of the present invention related to a quaternary ammonium salt detergent and the use of such quaternary ammonium salt detergents in a fuel composition to reduce diesel injector deposits and remove or clean up existing deposits on the diesel injectors.

New components for gasoline additives can be made. The new components for gasoline additives may be provided as amides. The gasoline additives that have these new amide components can be used for improving fuel efficiency, removing or reducing deposits on intake valves, and removing or reducing fouling of injector nozzles.

New components for gasoline additives can be made. The new components for gasoline additives may be provided as amides. The gasoline additives that have these new amide components can be used for improving fuel efficiency, removing or reducing deposits on intake valves, and removing or reducing fouling of injector nozzles.

A composition including a pyrolysis oil and, as an additive, one or more of: (a) an aldehyde-alkylphenol copolymer and/or an aldehyde-alkylphenol-polyamine copolymer, wherein the alkylphenol of the copolymer comprises an alkyl group having at least 30 carbon atoms; and (b) the reaction product of an alcohol and/or amine with a copolymer of an alpha-olefin and an ethylenically unsaturated carboxylate compound, wherein the alpha-olefin and/or the alcohol and/or amine has at least 30 carbon atoms. A method of reducing the pour point of a composition including a pyrolysis oil and a use of the aforementioned additives for reducing the pour point of a composition comprising a pyrolysis oil, are also disclosed.

The present technology is related to amide or ester containing quaternary ammonium salts having a hydrocarbyl substituent of number average molecular weight less 300, and additive packages having such quaternary ammonium salts and improved stability.