A composition comprising at least one fuel that is a diesel fuel, a biodiesel fuel, or combinations thereof and less than 100 ppm, less than 50 ppm (or less than 25 ppm, less than 10 ppm, 1 to 7 ppm, or 5 to 7 ppm) of an alkylene-coupled C.sub.10 to C.sub.60 (or C.sub.10 to C.sub.40, C.sub.14 to C.sub.32 or C.sub.24 to C.sub.28) alkylphenol; 25 to 500 ppm (or 50 to 500 ppm, or 150 to 450 ppm or 250 to 450 ppm, or 250 to 400 ppm) of a terpolymer; and 5 to 90 ppm, (or 10 to 70 ppm, to 60 ppm, or 10 to 55 ppm) of hydrocarbyl-substituted amine detergent having at least one tertiary amino group. Methods of reducing the cold filter plugging point (CFPP) of a fuel, said method comprising adding the following components: less than 100 ppm, less than 50 ppm (or less than 25 ppm; less than 10 ppm, 1 to 7 ppm, or 5 to 7 ppm) of an alkylene-coupled C.sub.10 to C.sub.60 (or C.sub.10 to C.sub.40, C.sub.14 to C.sub.32 or C.sub.24 to C.sub.28) alkylphenol; 25 to 500 ppm (or 50 to 500 ppm, or 150 to 450 ppm or 250 to 450 ppm, or 250 to 400 ppm) of a terpolymer; and 5 to 90 ppm, (or 10 to 70 ppm, to 60 ppm, or 10 to 55 ppm) of hydrocarbyl-substituted amine detergent having at least one tertiary amino group. Uses of a fuel additive composition to reduce the cold filter plugging point (CFPP) of a fuel, wherein the fuel additive composition comprises: 0.2 to 3 wt % of an alkylene-coupled C.sub.10 to C.sub.60 (or C.sub.10 to C.sub.40, C.sub.14 to C.sub.32 or C.sub.24 to C.sub.28) alkylphenol; 10 to 50 wt % of a terpolymer; and 2 to 10 wt % of hydrocarbyl-substituted amine detergent having at least one tertiary amino group; and an optional solvent.

The present disclosure provides fuel additives including quaternary ammonium salt additive(s) and Mannich detergent additive(s) effective to improve engine performance in both port fuel injected and gasoline direct injection engines.

The present disclosure provides fuel additives including quaternary ammonium salt additive(s) and Mannich detergent additive(s) effective to improve engine performance in both port fuel injected and gasoline direct injection engines.

The present invention relates to a fuel oil having a sulfur content of less than 50 ppm, comprising i. at least one oil-soluble amide-ammonium salt of a polycarboxylic acid with a mono- and/or dialkylamine (A) and ii. 5-100% by weight, based on the amount of amide-ammonium salt (A), of an oil-soluble amine (B), and iii. a lubricity additive (C) selected from fatty acids, fatty acid partial esters of polyols and fatty acid amides of alkanolamides, and wherein the fuel oil consists of fuel oil of mineral origin, synthetic fuel or a mixture thereof.

The present invention relates to a fuel oil having a sulfur content of less than 50 ppm, comprising i. at least one oil-soluble amide-ammonium salt of a polycarboxylic acid with a mono- and/or dialkylamine (A) and ii. 5-100% by weight, based on the amount of amide-ammonium salt (A), of an oil-soluble amine (B), and iii. a lubricity additive (C) selected from fatty acids, fatty acid partial esters of polyols and fatty acid amides of alkanolamides, and wherein the fuel oil consists of fuel oil of mineral origin, synthetic fuel or a mixture thereof.

The present invention relates to a nitrogen-containing diesel solidification point depressant composition, and preparation and application thereof. The nitrogen-containing diesel solidification point depressant composition includes the following components in percentage by weight: 10-40% of monoisopropanolamine; 10-40% of cyclohexane; 0-20% of polyethylene glycol; and 40-60% of N-tetradecyl methacrylamide-tetradecyl methacrylate. After the prepared diesel solidification point depressant composition is added to commercially available 0 #diesel, a solidification point and a cold filter plugging point of the diesel are respectively depressed by 21-25? C. and 9-13? C.

This invention relates to malienated derivatives made from maleic anhydride, functionalized monomers, and one or more additional reagents, e.g., an oxygen-containing reagent (e.g., alcohol, polyol), a nitrogen-containing reagent (e.g., amine, polyamine, aminoalcohol), a metal and/or a metal compound. The invention relates to lubricants, functional fluids, fuels, dispersants, detergents and functional compositions (e.g., cleaning solutions, food compositions, etc.).

This invention relates to malienated derivatives made from maleic anhydride, functionalized monomers, and one or more additional reagents, e.g., an oxygen-containing reagent (e.g., alcohol, polyol), a nitrogen-containing reagent (e.g., amine, polyamine, aminoalcohol), a metal and/or a metal compound. The invention relates to lubricants, functional fluids, fuels, dispersants, detergents and functional compositions (e.g., cleaning solutions, food compositions, etc.).

A carrier fluid or fluidizer for use in fuel performance additives or fuels including such additives is described herein. The novel carrier fluids include a unique blend of alkoxylated alcohols or polyols providing unexpected performance improvements to fuel performance additives and fuels incorporating the additives. The carrier fluids, when combined with at least a detergent, provide desired valve stick performance and unexpectedly improve the intake valve deposit performance at the same time.

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.