This invention relates to a lubricating oil composition and production thereof. The lubricating oil composition comprises a Mannich base represented by the following formula (III) (wherein A and R.sub.2 are as defined in the specification) and a lubricant base oil. The lubricating oil composition according to this invention exhibits excellent cleansing and dispersing performance and excellent anticorrosion performance. ##STR00001##

The present disclosure relates to novel anti-wear additives for diesel or biodiesel fuels having a sulphur content less than or equal to 500 ppm by mass. These novel additives will also improve the lacquering resistance of the higher-grade diesel or biodiesel fuels having a sulphur content less than or equal to 500 ppm by mass.

This invention relates to a Mannich base, production and use thereof in producing a detergent. The Mannich base is represented by the following formula (III), wherein A and R.sub.2 are as defined in the specification. The Mannich base can be used to produce a detergent and a fuel oil composition exhibiting excellent deposit formation suppressing performance and excellent anticorrosion performance. ##STR00001##

This invention relates to a Mannich base, production and use thereof in producing a detergent. The Mannich base is represented by the following formula (III), wherein A and R.sub.2 are as defined in the specification. The Mannich base can be used to produce a detergent and a fuel oil composition exhibiting excellent deposit formation suppressing performance and excellent anticorrosion performance. ##STR00001##

A composition contains an additive for assisting with the regeneration of the PF in the form of an organic dispersion of iron particles and a detergent including a polyester quaternary ammonium salt.

A fuel additive composition, fuel comprising said additive, and methods of use thereof are provided. The fuel additive composition comprises a synergistic combination of a hydrocarbyl-substituted succinimide dispersant and a compound of the following formula: ##STR00001##
and tautomers and enantiomers thereof, wherein R.sup.3 is a hydrocarbyl group having a number average molecular weight ranging from about 100 to about 5000, and wherein the weight ratio of (a) to (b) ranges from about 5:1 to about 1:5. The fuel additive composition is present in fuel in an amount sufficient to improve the conductivity properties of the fuel.

A fuel additive composition, fuel comprising said additive, and methods of use thereof are provided. The fuel additive composition comprises a synergistic combination of a hydrocarbyl-substituted succinimide dispersant and a compound of the following formula: ##STR00001##
and tautomers and enantiomers thereof, wherein R.sup.3 is a hydrocarbyl group having a number average molecular weight ranging from about 100 to about 5000, and wherein the weight ratio of (a) to (b) ranges from about 5:1 to about 1:5. The fuel additive composition is present in fuel in an amount sufficient to improve the conductivity properties of the fuel.

There is disclosed a biodegradable fuel additive composition derived from at least one animal or plant source, and a fuel composition containing a biodegradable fuel additive composition derived from at least one animal or plant source useful for reducing the formation of engine deposits and for improving fuel economy of a vehicle combusting the fuel composition.

A synergistic mixture comprising from 1 to 99.9% by weight of compounds having structural elements (I) ##STR00001##
in which the free valencies on the oxygen atom and on the nitrogen atom may be combined to form a five-, six- or seven-membered ring and the benzene ring may also bear substituents at one or more of the free positions, and from 0.1 to 99% by weight of sulfur-containing organic compounds with antioxidant action. This synergistic mixture is suitable as a stabilizer for stabilizing inanimate organic material, especially mineral oil products and fuels, against the action of light, oxygen and heat.

The present disclosure generally relates to a multifunctional additive obtained from the reaction of: (a) an intermediate obtained from the reaction of maleic anhydride and a polyoxyalkylene monoamine; and (b) an amine compound comprising a primary amine group and/or a secondary amine group and its use in a variety of applications, including, but not limited to: as a corrosion inhibitor or friction modifier in aqueous and non-aqueous systems; in fuel deposit control agents; as a dispersant in pigment, asphalt and cement compositions; and as a detergent.