Abstract: Disclosed herein is a process for lubricating an internal combustion engine with a lubricant composition that may be substantially ash free. The ashless lubricant composition described herein may comprise primary antioxidants, such as aminic diphenyl amines, alkylated phenyl-naphthyl amines, and phenolic antioxidants. The ashless lubricant composition described herein may also comprise sulfur containing products that may work as secondary antioxidants. Other components such as ashless antiwear components, dispersants, pour point depressants, friction modifiers, and metal deactivators may also be used to formulate an ashless lubricant composition according to an embodiment.

Abstract: A fuel additive composition includes a polyalkenylsuccinimide, a mono or polyfunctional polyisobutene amine, and a carrier oil selected from the group of mineral oils, polyethers, polyetheramines, esters, and combinations thereof. The polyalkenylsuccinimide includes the reaction product of a hydrocarbyl dicarboxylic acid producing reaction intermediate and a nucleophilic reactant. The hydrocarbyl dicarboxylic acid producing reaction intermediate includes the reaction product of a polyolefin comprising C2 to C18 olefin units and having a number average molecular weight (Mn) of about 500 to 5,000 g/mol and a C4 to C10 monounsaturated acid reactant. The hydrocarbyl dicarboxylic acid producing reaction intermediate includes from 0.5 to 10 dicarboxylic acid producing moieties per molecule of the polyolefin. The nucleophilic reactant is selected from the group of amines, alcohols, amino alcohols, and combinations thereof.

Abstract: A diesel fuel containing a soot dispersant additive which is a grafted and derivatized low molecular weight copolymer of ethylene and at least one C3-C10 alpha monoolefin is provided. Also provided is a method for improving the fuel economy of a diesel engine which comprises operating the diesel engine with a fuel composition comprising (a) a major amount of a diesel fuel and (b) a minor fuel economy improving effective amount of the soot dispersant additive.

Abstract: A diesel fuel containing a soot dispersant additive which is a grafted and derivatized low molecular weight copolymer of ethylene and at least one C3-C10 alpha monoolefin is provided. Also provided is a method for improving the fuel economy of a diesel engine which comprises operating the diesel engine with a fuel composition comprising (a) a major amount of a diesel fuel and (b) a minor fuel economy improving effective amount of the soot dispersant additive.

Abstract: A lubricating oil composition is provided which comprises (a) an oil of lubricating viscosity having a kinematic viscosity of about 2 to 10.5 cSt at 100° C. and (b) a friction modifying effective amount of an ashless friction modifier comprising a reaction product of a C4 to about C75 fatty acid ester and an alkanolamine. Particularly preferred is a lubricating oil composition comprising (a) an oil of lubricating viscosity having a kinematic viscosity of about 2 to 10.5 cSt at 100° C. and comprising about 55 to about 85 weight percent of a first lubricating oil, and about 15 to about 45 weight percent of a second lubricating oil wherein the kinematic viscosity of the second lubricating oil is lower than the kinematic viscosity of the first lubricating oil at 100° C.; and (b) about 0.5 to about 5.0 weight percent, based on the total weight of the lubricating oil composition, of an ashless friction modifier comprising a reaction product of a C4 to about C75 fatty acid ester and an alkanolamine.

Abstract: A fuel additive composition for improving the delivery of friction modifier to the lubricant oil of an internal combustion engine comprising (a) a friction modifying amount of a reaction product of at least one natural or synthetic oil and at least one alkanolamine; and, (b) at least one fuel detergent is provided. Also provided is a fuel composition containing the fuel additive composition and a method for operating an engine employing the fuel composition therefor.

Abstract: An additive concentrate for improving the lubricity of low sulfur fuels comprises an additive composition diluted in an aromatic solvent, said composition comprising the reaction product of a first glyceride possessing an unsaturated fatty acid content of at least about 40 mole %, based on the total weight of fatty acid present in the first glyceride, and an iodine number of greater than 35, a second glyceride possessing an unsaturated fatty acid content of less than about 20 mole %, based on the total weight of the fatty acids present in the second glyceride, and an iodine number of less than 35, and, at least one alkanolamine. The concentrate remains fluid and stable at low temperatures and, when added to low sulfur fuels, improves lubricity, enhances fuel economy and minimizes engine deposits.

Abstract: A fuel additive composition for improving the delivery of friction modifier to the lubricant oil of an internal combustion engine comprising (a) a friction modifying amount of a reaction product of at least one natural or synthetic oil and at least one alkanolamine; and, (b) at least one fuel detergent is provided. Also provided is a fuel composition containing the fuel additive composition and a method for operating an engine employing the fuel composition therefor.

Abstract: A gasoline composition comprising:(a) a major portion of a gasoline fuel, and(b) a minor amount, as a gasoline detergent additive, of a Mannich coupled product of bis-polyisobutylene succinimide of an amine, prepared by:(i) reacting an alkenyl succinimide acid anhydride with an amine to form a bis-succinimide;(ii) treating the bis-succinimide with nonylphenol in the presence of an aldehyde to form a Mannich phenol coupled bis-succinimide product; and(iii) recovering the product Mannich phenol coupled bis-succinimide.

Abstract: A motor fuel composition which inhibits engine ORI and intake valve deposit formation and sticking comprises a mixture of hydrocarbons boiling in the range of 90.degree. F.-450.degree. F. and (I) the reaction product of a hydrocarbyl-substituted dibasic acid anhydride and a polyoxyalkylene diamine; (II) a polymeric component which is a polyolefin polymer, copolymer, or the corresponding aminated or hydrogenated polymer or copolymer, or mixtures thereof, of a C.sub.2 -C.sub.10 hydrocarbon; (III) a polyalkylene glycol having a molecular weight in the range of 500-2000; and (IV) a lubricating oil composition.