Abstract: A lubricant composition suitable for use in engines fueled by gasoline or biorenewable fuels or both, comprising an oil of lubricating viscosity and a dispersant system is disclosed herein. Also disclosed is an emulsion composition comprising a biorenewable fuel, an oil of lubricant viscosity, and a dispersant system. A method of reducing aqueous separation in an emulsion composition is also disclosed.

Abstract: The embodiments described herein relate to particular formulations and methods that provide reduced engine deposits. The lubricant composition includes a base oil having a NOACK volatility of from about 5 to about 15 and a zinc dialkyl dithio phosphate composition. The zinc dialkyl dithio phosphate composition has at least about 65 mole percent of zinc dialkyl dithio phosphate compounds derived from all primary alcohols, wherein the zinc dialkyl dithio phosphate composition has greater than about 40 mole percent zinc dialkyl dithio phosphate compounds having alkoxy moieties derived from alcohols having four carbon atoms.

Abstract: There is disclosed a lubricating composition comprising a first base oil having a kinematic viscosity at 100° C. ranging from about 3.5 cSt to about 6 cSt; and a second high viscosity base oil having a kinematic viscosity at 100° C. ranging from about 6 cSt to about 17 cSt.

Abstract: A lubricated surface, a method for reducing wear between moving parts, and lubricants, and lubricant additive concentrates containing a wear reducing agent. The lubricated surface contains a base oil of lubricating viscosity, a hydrocarbon soluble titanium compound, a metal-free friction modifier and an amount of at least one hydrocarbon soluble magnesium compound effective to provide a reduction in surface wear greater than a reduction surface wear for a lubricant composition devoid of the titanium compound, metal-free friction modifier, and magnesium compound. The lubricant composition contains no more than about 800 ppm phosphorus and is devoid of calcium detergents and organic molybdenum compound.

Abstract: A fully formulated lubricating oil, lubricated surface, and lubricant additive concentrates for lubricants providing reduced sludge formation. The fully formulated lubricating oil composition has therein at least one succinimide dispersant derived from a polyalkylene compound having from about 50 to about 85% vinylidene double bonds in the compound, a metal containing detergent, at least one wear reducing agent, at least one antioxidant, and a hydrocarbon soluble titanium compound as a friction modifier. The lubricating oil composition is also substantially free of molybdenum compounds.

Abstract: A lubricant composition, lubricant concentrate and method for reducing engine deposits. The composition and method include a base oil of lubricating viscosity; an organo-molybdenum compound; a deposition reducing amount of a reaction product of an alkyl-substituted dicarboxylic acid compound selected from the group consisting of alkyl-substituted dicarboxylic acids, alkyl-substituted dicarboxylic acid anhydrides, and mixtures thereof, and a basic salt of aminoguanidine, in an amount sufficient to provide a product rich in alkyl bis-3-amino-1,2,4-triazole; and optionally a phenate detergent. The lubricant composition and method provide engine deposits that are less than an amount of engine deposits in the absence of component (c) and/or optional component (d).

Abstract: The embodiments described herein relate to particular formulations and methods that provide reduced engine deposits. The lubricant composition includes a base oil having a NOACK volatility of from about 5 to about 15 and a zinc dialkyl dithio phosphate composition. The zinc dialkyl dithio phosphate composition has at least about 65 mole percent of zinc dialkyl dithio phosphate compounds derived from all primary alcohols, wherein the zinc dialkyl dithio phosphate composition has greater than about 40 mole percent zinc dialkyl dithio phosphate compounds having alkoxy moieties derived from alcohols having four carbon atoms.

Abstract: A lubricating oil composition comprising a) an oil of lubricating viscosity having a viscosity index of at least about 95; b) at least one calcium detergent; c) at least one oil soluble titanium compound; d) at least one friction modifier; and e) at least one metal dihydrocarbyldithiophosphate compound. The composition has a Noack volatility of about 15 wt. % or less, and contains from about 0.05 to about 0.6 wt. % calcium from the calcium detergent, titanium metal in an amount of at least about 10 ppm up to about 1500 ppm titanium from the titanium compound, and phosphorus from the metal dihydrocarbyldithiophosphate compound in an amount up to about 0.1 wt. %.

Abstract: There is disclosed a lubricating composition comprising a first base oil having a kinematic viscosity at 100° C. ranging from about 3.5 cSt to about 6 cSt; and a second high viscosity base oil having a kinematic viscosity at 100° C. ranging from about 6 cSt to about 17 cSt.

Abstract: A lubricant composition suitable for use in engines fueled by gasoline or biorenewable fuels or both, comprising an oil of lubricating viscosity and a dispersant system is disclosed herein. Also disclosed is an emulsion composition comprising a biorenewable fuel, an oil of lubricant viscosity, and a dispersant system. A method of reducing aqueous separation in an emulsion composition is also disclosed.

Abstract: An engine oil lubricant composition having improved control of oxidation viscosity, and piston deposits is provided. The composition further exhibits performance on the ASTM Sequence IIIG Test of about 90% or less kinematic viscosity increase at 40° C. and about 5.5 or more merits average weighted piston deposits. The composition meets or exceeds the standards of both the ILSAC GF-4 and the General Motors GM4718M specifications.

Abstract: A lubricated surface, a method for reducing wear between moving parts, and lubricants, and lubricant additive concentrates containing a wear reducing agent. The lubricated surface contains a base oil of lubricating viscosity, a hydrocarbon soluble titanium compound, a metal-free friction modifier and an amount of at least one hydrocarbon soluble magnesium compound effective to provide a reduction in surface wear greater than a reduction surface wear for a lubricant composition devoid of the titanium compound, metal-free friction modifier, and magnesium compound. The lubricant composition contains no more than about 800 ppm phosphorus and is devoid of calcium detergents and organic molybdenum compound.

Abstract: A lubricant composition comprising a major amount of baseoil lubricant and a minor amount of lubricant additive. The lubricant additive includes (a) a dispersant containing at least one member selected from hydrocarbyl-substituted succinimides, hydrocarbyl-substituted amines, and Mannich base adducts derived from hydrocarbyl-substituted phenols condensed with an aldehyde and an amine, and (b) a viscosity index improver that includes a substantially linear block copolymer having a number average molecular weight as determined by gel permeation chromatography ranging from about 50,000 to about 250,000. The block copolymer is derived from a conjugated diene monomer containing no less than 5 carbon atoms and a monoalkenylarene monomer, wherein the block copolymer has an aromatic content ranging from about 10 wt. % to about 50 wt. % and an olefinic unsaturation ranging from about 0.5 wt. % to about 5 wt. %.

Abstract: A lubricated surface, a method for reducing wear between moving parts, and lubricants, and lubricant additive concentrates containing a wear reducing agent. The lubricated surface contains a base oil of lubricating viscosity and an amount of at least one hydrocarbon soluble magnesium compound effective to provide a reduction in surface wear greater than a reduction surface wear for a lubricant composition devoid of the magnesium compound. The lubricant composition contains no more than about 0.05 wt. % phosphorus and is devoid of calcium detergents.

Abstract: Lubricated surfaces, lubricant compositions for lubricating a surface, and methods for reducing friction coefficients in lubricants. The lubricated surface is provided by a lubricant composition containing a base oil of lubricating viscosity and an amount of at least one hydrocarbon soluble zinc compound devoid of phosphorus that is effective to provide a reduction in the coefficient of friction of the lubricant composition greater than a reduction in the coefficient of friction of the lubricant composition devoid of the hydrocarbon soluble zinc compound.

Abstract: A fully formulated lubricating oil, lubricated surface, and lubricant additive concentrates for lubricants providing improved lubricant characteristics. The lubricating oil composition has therein a dispersant mixture derived from a reaction product of polyalkylene compound, a carboxylic acylating agent, and a polyamine. The polyalkylene compound of at least one dispersant in the dispersant mixture has a number average molecular weight of at least about 1200 and at least one dispersant in the dispersant mixture contains boron such that a weight ratio of boron to nitrogen (B/N) in the dispersant mixture ranges from above about 0.25 to about 1.0.

Abstract: The embodiments described herein relate to particular formulations and methods that provide reduced exhaust catalyst deactivation and/or reduced oil consumption.

Abstract: The lubricant composition of the present disclosure comprises a major amount of a base oil and a minor amount of an additive composition comprising an overbased detergent and a low-base detergent, wherein the lubricant composition has a salt to metal ratio ranging from about 3.0 to about 8.0.

Abstract: There is disclosed a lubricating composition having a base oil, a friction modifier, and a dispersant, wherein the lubricating composition has less than about 325 ppm of boron. Methods of making and using the disclosed lubricating composition are also disclosed.

Abstract: It has unexpectedly been found that the combination of (1) an alkylated diphenylamine, (2) a sulfurized olefin/fatty oil and/or an ashless dialkyldithiocarbamate, and (3) an alkylated phenothiazine, is highly effective at controlling crankcase lubricant oxidation and deposit formation. The present invention includes lubricating compositions, lubricating additives, and methods for improving the antioxidancy and/or deposit formation properties of a lubricating composition.