本公开提供了燃料添加剂，包含季铵盐添加剂和曼尼希清净剂添加剂，其在进气道燃料喷射发动机和缸内直接喷射发动机两者中有效地改进了发动机性能。

公开了一种组合物,其包含热解油和作为添加剂的:(a)一种或多种含氮抗氧化剂。 还公开了一种用于热解油的添加剂组合物,该添加剂组合物包含: (a)一种或多种含氮抗氧化剂; 和任选地: (b)包含马来酸酐衍生的单元和α-烯烃衍生的单元的共聚物; 和/或(c)羧酸和多胺的反应产物。 还公开了一种改进包含热解油的组合物的氧化稳定性的方法,该方法包括向组合物中添加(a)一种或多种含氮抗氧化剂,以及所述含氮抗氧化剂的相关用途。 还公开了用于改进包含热解油的组合物的储存稳定性的此类方法和用途。

本文公开了一种燃料组合物，其包含：(1)大于50重量％的沸点在汽油或柴油范围内的烃燃料，和(2)少量减少低速早燃(LSPI)的添加剂，所述添加剂包含脒或具有以下结构的β‑氨基链烷醇或其盐中的一种或多种，其中R1、R2、R3和R4各自独立地选自氢、芳环和C1‑C20烷基，并且R5是氢或具有结构–(CH)R6‑OH的醇,R6是氢、C1‑C10烷基或C1‑C10烯基:

Tetraaromatic diamine compounds having the general formula: are provided wherein a is 0-3; b, c and d independently are integers from 0-5, R1 and R2 together with the carbon atoms to which they are bonded are joined together to form a substituted or unsubstituted C3 to about C30 ring, saturated, partially unsaturated or fully unsaturated, optionally substituted with one or more heteroatoms, a is 0-3; b, c and d independently are integers from 0-5, R3, R4, R5 and R6 are independently hydrogen, a straight or branched C1-C30 alkyl or alkylene group optionally substituted with one or more substituents, a substituted or unsubstituted C3-C12 cycloalkyl, a substituted or unsubstituted C5-C25 aryl, a substituted or unsubstituted C6-C25 arylalkyl, a straight or branched C1-C30 alkoxy group optionally substituted with one or more substituents or two R4 substituents and/or two R5 substituents and/or two R6 substituents on adjacent carbon atoms of the aromatic ring associated therewith can be joined together to form a substituted or unsubstituted C3 to about C30 ring, saturated, partially unsaturated or fully unsaturated, optionally substituted with one or more heteroatoms. Lubricating oil compositions containing the tetraaromatic diamine compound additives are also provided.

The invention relates to novel lubricity enhancing additives, to a method for producing the same, and to the use thereof.

A fuel composition for two-cycle engines comprising a major amount of fuel boiling in the gasoline range and a minor amount of a lubricant composition comprising a base oil of lubricating viscosity and an additive formulation comprising (1) a molybdenum/sulfur complex of a basic nitrogen compound, (2) a carboxylic acid amide, and (3) a succinimide.

包括（ａ）一种乙烯—混合不饱和酯共聚物或（ｂ）两种或多种，例如在其酯链上不同的乙烯—不饱和酯共聚物的组合物，用来改进燃料油的低温性能。

DES COMPOSITIONS CONTENANT DE L'AZOTE PREPAREES EN CONDENSANT UN AMINOPHENOL, PORTANT EVENTUELLEMENT UN SUBSTITUANT AU NOYAU R, AVEC UN HETEROCYCLE A TROIS OU QUATRE CHAINONS SONT UTILES COMME ADDITIFS POUR DES LUBRIFIANTS ET DES COMBUSTIBLES NORMALEMENT LIQUIDES. DANS UN MODE DE REALISATION TYPIQUE, L'AMINOPHENOL EST UN AMINOPHENOL MONOCYCLIQUE ALCOYLE DANS LEQUEL LE SUBSTITUANT ALCOYLE A AU MOINS ENVIRON 30ATOMES DE CARBONE ET L'HETEROCYCLE EST UN EPOXYDE OU EPISULFURE DE 2 A 22ATOMES DE CARBONE.

A telomeric acid, a tertiary amine, and an epoxide are reacted in the absence of added water. The product recovered is effective in improving the filterability and reducing the pour point of diesel fuel. Alternatively the product can be prepared by reacting a quaternary ammonium hydroxide and a telomeric acid.

The invention provides the use of a poly(hydroxy-carboxylic acid)amide or -ester derivative of general formula I:wherein R is the residue of an amine, an aminoalcohol or a polyol linked to the or each poly(hydroxycarboxylic acid) via an amide or ester linkage; R1 is hydrogen or optionally substituted hydrocarbyl group containing up to 50 carbon atoms; A is an optionally substituted hydrocarbyl group; n is from 1-100, preferably 1-10 and p is from 1-5, as a fuel additive acting as a detergent and as a lubricity additive in fuel compositions.Moreover, the invention provides a fuel oil composition comprising of a major amount of a fuel oil, and a minor amount of an the additive as well as a additive concentration for use in a fuel oil composition.