Abstract: A motorcycle having an engine and a clutch may be lubricated by supplying to the engine, but not to the clutch a lubricant of an oil of lubricating viscosity, an overbased detergent, a dispersant, a metal salt of a phosphorus acid, and a hydroxyalkyl-substituted imidazoline having a hydrocarbyl substituent of at least about 8 carbon atoms and a hydroxyalkyl substituent having 2 to 8 carbon atoms.

Abstract: The invention provides a lubricating composition containing (a) 0.001 wt % to 15 wt % of a polymer with radial or star architecture; (b) an overbased detergent; (c) a dispersant; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition.

Abstract: A motorcycle having an engine and a clutch may be lubricated by supplying to the engine, but not to the clutch a lubricant of an oil of lubricating viscosity, an overbased detergent, a dispersant, a metal salt of a phosphorus acid, and a hydroxyalkyl-substituted imidazoline having a hydrocarbyl substituent of at least about 8 carbon atoms and a hydroxyalkyl substituent having 2 to 8 carbon atoms.

Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and a hydrogenated copolymer of an olefin block and vinyl aromatic block, wherein the copolymer is optionally functionalized. The invention further provides a method for preparing a hydrogenated copolymer; and the use of the lubricating composition.

Abstract: The invention provides a lubricating composition containing (a) 0.001 wt % to 15 wt % of a polymer with radial or star architecture; (b) an overbased detergent; (c) a dispersant; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition.

Abstract: The present invention provides a method of asphaltene control in a hydrocarbon fluid, the method employing a composition comprising: a dispersant of formulae (I) or (II), including salts thereof, wherein T or T? is hydrogen or a polymerizing terminating group; A is C16-20 alkylene or alkenylene group; B is C10-20 alkylene or alkenylene group; Z and Z? are the residue of a polyamine or polyimine; n is 2 to 50; m is 0 to 25; p and p? are 2 or more, in one embodiment not greater than 2000 and in another embodiment not greater than 1000; A? is C8-20 alkylene or alkenylene group; n? is 2 to 10; and the weight ratio of T-(O-A-CO)n (O—B—CO)m to Z or T?-(O-A?-CO)n to Z? is at least 5:1.

Abstract: This invention relates to a method of lubricating an internal combustion engine comprising at least one of a crankcase, a gear and a wet-clutch, said method comprising supplying to said crankcase, gear and wet-clutch a lubricating composition comprising: (a) an oil of lubricating viscosity; and (b) a viscosity modifier with a number average molecular weight from 1000 to 75,000, wherein the lubricating composition has a SAE viscosity grade from XW-Y, wherein X is from 0 to 20 and Y is from 20 to 50; and wherein the lubricating composition has a phosphorus content from a metal hydrocarbyl dithiophosphate of 0.12 wt % or less.

Abstract: This invention relates to a method of lubricating an internal combustion engine comprising at least one of a crankcase, a gear and a wet-clutch, said method comprising supplying to said crankcase, gear, and wet-clutch a lubricating composition containing: (a) an oil of lubricating viscosity; (b) a boron containing compound; and (c) a friction modifier.

Abstract: The invention provides a lubricating composition containing (a) 0.001 wt % to 15 wt % of a polymer with radial or star architecture; (b) an overbased detergent; (c) a dispersant; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition.

Abstract: This invention relates to a composition containing: (a) a hydrocarbon fluid; and (b) a hydrocarbyl- and hydroxy-substituted aromatic condensate comprising the reaction product of: (1) at least 75 mole percent based on the total amount of (b)(1) and (b)(2) of a hydrocarbyl- and hydroxy-substituted aromatic compound wherein the hydrocarbyl substituent is a linear substituent containing 8 to 36 carbon atoms; (2) 0.001 to 25 mole percent based on the total amount of (b)(1) and (b)(2) of a hydrocarbyl- and hydroxy-substituted aromatic compound wherein the hydrocarbyl substituent is a branched substituent containing 8 to 20 carbon atoms; and (3) an amount of an aldehyde, ketone, or reactive equivalent thereof effective to condense (1) and (2) to form the hydro-carbyl- and hydroxy-substituted aromatic condensate. The invention further relates to method of preparing the condensate and its use as an additive in a crude oil, a liquid fuel or an oil of lubricating viscosity.

Abstract: A fuel composition exhibiting improved anti-static properties, comprises a liquid fuel which contains less than 500 parts per million by weight sulfur; 0.001 to 1 ppm of a hydrecarbyl monoamine or hydrocarbyl-substituted poly(alkylenieamine); and 10 to 500 ppm of at least one fatty acid containing 8 to 24 carbon atoms, or an ester thereof.

Abstract: A fuel composition exhibiting improved anti-static properties, comprises a liquid fuel which contains less than 500 parts per million by weight sulfur; 0.001 to 1 ppm of a hydrocarbyl monoamine or hydrocarbyl-substituted poly(alkyleneamine); and 10 to 500 ppm of at least one fatty acid containing 8 to 24 carbon atoms, or an ester thereof.