Abstract: An automotive racing oil and method of making same, the automotive racing oil comprising base oil comprising polyalphaolefin and racing oil components effective to produce automotive racing oil properties comprising a kinematic viscosity of from about 3.2 centistokes (cSt) to about 25 cSt at 100° C. and a coefficient of friction of about 0.065 or less at 180° C., the automotive racing oil having a molybdenum concentration of more than 360 ppm and a zinc concentration of about 1400 ppm or more, both as measured by X-ray fluorescence, and a quantity of a combination of esters maintaining the racing oil components in solution in the base oil, the combination of esters comprising one or more multiester(s) and one or more polyol monoester(s).

Abstract: The use, in a lubricating oil composition comprising base oil, of one or more magnesium detergents, for the reduction of clogging in a diesel particulate filter.

Abstract: An automotive racing oil and method of making same, the automotive racing oil comprising base oil comprising polyalphaolefin and racing oil components effective to produce automotive racing oil properties comprising a kinematic viscosity of from about 3.2 centistokes (cSt) to about 25 cSt at 100° C. and a coefficient of friction of about 0.065 or less at 180° C., the automotive racing oil having a molybdenum concentration of more than 360 ppm and a zinc concentration of about 1400 ppm or more, both as measured by X-ray fluorescence, and a quantity of a combination of esters maintaining the racing oil components in solution in the base oil, the combination of esters comprising one or more multiester(s) and one or more polyol monoester(s).

Abstract: A lubricating oil composition for internal combustion engines which has a sulphated ash content of not greater than 0.9 wt. % and a phosphorus content in the range of from 0.04 to 0.1 wt. % is provided. The composition contains base oil, one or more detergents selected from phenate detergents, salicylate detergents and sulphonate detergents, wherein said one or more detergents each, independently, have a TBN (total base number) value in the range of from 30 to 350 mg.KOH/g, as measured by ISO 3771; and at least 3.5 wt. % of one or more antioxidants selected from the group of aminic antioxidants and/or phenolic antioxidants, based on the total weight of the lubricating oil composition.

Abstract: A lubricating oil composition for internal combustion engines which composition is phosphorus-free is provided. The lubricating oil composition contains at least 60% wt. of base oil selected from Group I, Group II, Group III and Group IV base oils or mixtures thereof, and at least 1.4% wt. of one or more antioxidants selected from aminic antioxidants and/or phenolic antioxidants, based on the total weight of the lubricating oil composition.

Abstract: A lubricating oil identification system including a lubricating oil composition containing a passive marker which passive marker is capable of detection in situ by a detector present in a machine is provided. A detector is provided for detecting in situ a passive marker in the oil composition when the oil composition is in the machine. Lubricating oil compositions and machines suitable for use in this identification system and methods of operating the machines are also disclosed.

Abstract: A lubricating oil composition comprising, as a detergent, metal salt of a long chain hydrocarbyl-substituted organic acid, at a concentration of not more than 15 mmol/kg oil.

Abstract: A lubricating composition comprising a major portion of a lubricating oil and a minor portion of an alkyl or alkenyl-substituted succinimide, which succinimide is the reaction product of a polyamine with 3 to 25 carbon atoms, such has been selected from linear and branched alkylene polyamines, cycloaliphatic polyamines and heterocyclic polyamines, and an alkyl or alkenyl-substituted succinic anhydride, in which the alkyl or alkenyl moiety has a number average molecular weight from 600 to 1300 and in which the average number of succinic groups per alkyl or alkenyl group is between 1.4 and 4.0.

Abstract: The invention relates, in one embodiment, to a method for separating coal particles from an aqueous slurry in which a multiple emulsion of oil in water is added to the aqueous slurry, the mixture is agitated to form agglomerates of coal particles, and the coal particles are separated from the remaining aqueous slurry. By the use of a multiple emulsion of oil in water, the amount of coal recovered per unit weight of oil is increased.

Abstract: Process for the agglomeration of coal fines characterized by the staged addition of an aqueous emulsion of an oil fraction to an aqueous slurry of the fines.