Abstract: A novel gasoline-soluble polyoxyalkylene diamine compound, a concentrate comprising the compound dissolved in a hydrocarbon solvent, and a haze-free, deposit-resistant and ORI-inhibited motor fuel composition comprising the compound is described. Motor fuel compositions comprising the novel polyoxyalkylene diamine compound of the instant invention are haze-free and show improved ORI control and carbonaceous deposit inhibition in comparison with conventional motor fuels. Motor fuel compositions of the instant invention may optionally comprise a polyolefin polymer/copolymer component having a molecular weight range of about 500-3500.

Abstract: Improved gasolines contain, as a detergent additive, the reaction product of coconut oil and diethanolamine or dimethylaminopropylamine.

Abstract: A railway diesel crankcase lubricating oil composition for railway diesel engines, containing a mineral lubricating oil, an overbased calcium alkylphenolate and an alkyaryl sulfonate oxidation and corrosion inhibiting amount of a reaction product of alpha-hydroxy omega hydroxy-poly (oxyethylene) poly (oxypropylene) poly (oxyethylene) block copolymer, dibasic acid anhydride and N-alkyl alkylene diamine.

Abstract: A haze, oxidation, and corrosion resistant diesel engine lubricant composition, particularly useful in marine and railway diesel engines, contains 0.1-5.0 weight percent of a reaction product additive. The reaction product additive is produced by first reacting substantially equimolar amounts of an anhydride compound which is either a dibasic acid anhydride or isatoic anhydride and a hydrocarbon-substituted mono primary amine or ether amine at a temperature range of 50.degree. C.-150.degree. C. to produce an intermediate reaction product. The intermediate reaction product is thereafter further reacted at an elevated temperature with a substantially equimolar amount of a heterocyclic azole or polyalkylene polyamine compound to form the final reaction product.

Abstract: Diesel oil of improved storage stability contains a condensate of an alkyl polyoxyethylene polyoxypropylene amine, maleic anhydride and an N-alkyl alkylene diamine.

Abstract: A crankcase lubricating oil composition for slow speed marine diesel engines characterized by having a Total Base Number from about 3 to 10 containing a mineral lubricating oil, an overbased calcium alkylphenolate, a zinc dihydrocarbyl dithiophosphate, an alkylated diphenylamine, and a rust-inhibiting amount of at least one dialkoxylated alkylpolyoxyalkyl primary amine.

Abstract: A crankcase lubricating oil composition for railway diesel engines, containing a mineral lubricating oil, an overbased calcium alkylphenolate and an alkyaryl sulfonate oxidation and corrosion inhibiting amount of a reaction product of polyoxyisopropylene diamine, dibasic acid anhydride and polyalkylene polyamine.

Abstract: A material is described having a use as a motor fuel additive for controlling engine octane requirement increase (ORI), controlling and reducing hydrocarbon and carbon monoxide engine emissions, and having carburetor detergency properties. Said material is the reaction product of maleic anhydride, a polyether polyamine, preferably a polyether diamine, and a hydrocarbyl polyamine, preferably an n-alkyl-alkylene diamine. A concentrate comprising the prescribed reaction product dissolved in a hydrocarbon solvent is also described. Motor fuels containing the reaction product additive of the instant invention show improved ORI control and carburetor detergency in comparison with motor fuels without said reaction product additive.

Abstract: A motor fuel composition comprising a mixture of hydrocarbons in the gasoline boiling range containing in combination a reaction product component and a polyolefin polymer/copolymer component is described. The reaction product component is the reaction product of maleic anhydride, a polyether polyamine, and a hydrocarbyl polyamine. The polyolefin polymer/copolymer component is the polymer, copolymer, or corresponding hydrogenated polymer or copolymer of a C.sub.2 -C.sub.6 unsaturated hydrocarbon, said polymer or copolymer having a molecular weight in the range of 500-3500, preferably 650-2600.

Abstract: Gasoline of reduced combustion chamber deposit attained by addition of, as additive, a reaction product of polyoxyisopropylenediamine-maleic anhydride-N-tallow-1,3-propane diamine.

Abstract: Gasoline of reduced combusiton chamber deposits attained by addition of, as an additive, a reaction product of alpha-hydroxy omega hydroxy-poly (oxyethylene) poly (oxypropylene) poly (oxyethylene) block copolymer, maleic anhydride and N-tallow-1,3-propane diamine.

Abstract: A novel fuel composition contains methanol or methanol/gasoline blends plus, as a wear-inhibiting additive, a reaction product of polyoxyisopropylenediamine, maleic anhydride and N-alkyl-1,3-propane diamine.

Abstract: A keto-acid amide derived from the amination of a bicyclic keto-acid with an N-alkyl-alkylene diamine. The keto-acid amides are useful as carburetor detergents for motor fuel compositions.

Abstract: A novel fuel composition contains ethanol or gasohol, and, as a wear-corrosion-inhibiting additive, an aminated polyisopropoxylated polyethoxylated alkylphenol ##STR1## wherein R is a (C.sub.5 -C.sub.30) alkyl, alkaryl, aralkyl, aryl, or cycloalkyl group, x is a numeral of about 5 to about 30, and y is a numeral of about 1 to about 20.

Abstract: A process for converting a hazy water saturated alcohol-gasoline blend into a clear, stable gasoline composition having an improved octane rating. The conversion is made by adding to and blending with the hazy gasoline, a nonionic surfactant of an alkanoic acid derivative.

Abstract: A clear stable motor fuel composition having an improved octane rating which comprises about 2.0 to 10.0 volume percent of an alcohol selected from the group consisting of methanol, ethanol, tertiary butyl alcohol, isopropanol, and mixtures thereof; about 0.10 to 0.50 weight percent water; about 0.10 to 3.0 weight percent of a nonionic adduct of alkylphenol and ethylene oxide surfactant having 9 to 24 carbon atoms in the alkyl group and 6-10.0 ethylene oxide groups; and the remainder of said clear stable motor fuel composition is gasoline.

Abstract: Gasoline of reduced combustion chamber deposit attained by addition of, as additive, a reaction product of polyoxyisopropylenediamine-polyalkylene polyamine-maleic anhydride.

Abstract: A process for converting a hazy, water-saturated alcohol-gasoline blend into a clear, stable gasoline composition having an improved octane rating. The conversion is made by adding to and blending with the hazy, water-saturated gasoline, a nonionic surfactant of an adduct of soya sterol and a polyalkylene oxide.

Abstract: A process for converting a hazy or potentially hazy water saturated alcohol-gasoline blend into a clear, stable gasoline composition having an improved octane rating. The conversion is made by adding to and blending with the hazy gasoline, a nonionic surfactant of an aminated polyisopropoxylated polyethoxylated alkylphenol.

Abstract: A diesel fuel, containing the reaction product of Beta-mercaptoethanol and coconut oil, is characterized by improvement in anti-wear properties.