Abstract: A lubricating oil composition includes at least one base oil selected from the group consisting of a mineral oil-based lubricating oil, a synthetic oil-based lubricating oil, and a mixed oil thereof, zinc dialkyldithiophosphate X represented by Formula (1), and an acid phosphate ester amine salt Y represented by Formula (2), in which a content PX of the X is from 0.06% by mass to 0.08% by mass in terms of phosphorus concentration with respect to a total mass of the lubricating oil composition, and a content PY of the Y is from 0.015% by mass to 0.025% by mass in terms of phosphorus concentration with respect to the total mass of the lubricating oil composition.

Abstract: A lubricant composition comprising an oil of lubricating viscosity and an N-hydrocarbyl-substituted ?-aminoester or ?-aminothioester, wherein the N-hydrocarbyl substituent comprises a hydrocarbyl group of at least 3 carbons atoms, with a branch at the 1 or 2 position of the hydrocarbyl chain, provides exhibits basicity and good seal performance.

Abstract: A lubricating oil comprises a major amount of a base oil and a minor amount of an additive package, wherein the additive package comprises one or more friction modifiers including a reaction product of a hydroxy acid represented by HOCH2CO2H and an amine represented by the formula II: wherein R is a linear or branched, saturated, unsaturated, or partially saturated hydrocarbyl having about 8 to about 22 carbon atoms; X is oxygen or —NH; and m is an integer from about 1 to about 4. The friction modifiers may include one or more compounds of the Formula I: wherein X is selected from oxygen, —NR1, and a glycolic amide moiety; and R and each R1 are independently selected from linear or branched, saturated, unsaturated, or partially saturated hydrocarbyl having about 8 to about 22 carbon atoms and one but not both of R and R1 can be hydrogen; and m is an integer from about 1 to about 4. Methods of improving thin film and/or boundary layer friction are also provided.

Abstract: A sump-lubricated, spark-ignited engine is lubricated by supplying thereto a lubricant which comprises (a) an oil of lubricating viscosity; (b) a polyether; and (c) a metal-containing detergent. The lubricant has a total phosphorus content of less than 0.075 percent by weight.

Abstract: This invention relates to N-alkylated anthranilic acid derivative and their use in lubricants, such as engine oils, as TBN boosters. The invention particularly relates to compositions that deliver an ash-free base to a lubricant in the form of a basic amine additive, without adversely impacting seal compatibility and/or degradation, and methods thereof.

Abstract: Provided is a lubricating oil composition of an environmental regulation compliant type, comprising (A) a base oil for a lubricating oil, (B) sulfated oxymolybdenum dithiocarbamate, (C) an acid amide compound, (D) (d1) a fatty acid partial ester compound and/or (d2) an aliphatic amine compound and (E) a specific benzotriazole derivative, wherein a content of the component (B) is 0.02 to 0.1% by mass in terms of molybdenum; a content of the component (C) is 0.2 to 1.0 % by mass; a content of the component (D) is 0.2 to 1.0% by mass; and a content of the component (E) is 0.02 to 0.1% by mass each based on the whole amount of the composition, and it has an excellent friction reducing effect in combination with a high corrosion preventing effect to copper and lead.

Abstract: A lubricant additive produced by various processes, including mixing an organophosphate and an organofluorine compound, reacting an organophosphate and an organofluorine compound, reacting a fluorinated organophosphate and an organofluorine compound (with or without molybendum disulfide), or reacting an organophosphate, a metal halide and an organofluorine compound (with or without molybendum disulfide), to produce a reaction mixture comprising the lubricant additive. Also, a lubricant produced by various processes, including mixing an organophosphate and an organofluorine compound, reacting an organophosphate and an organofluorine compound, reacting a fluorinated organophosphate and an organofluorine compound (with or without molybendum disulfide), or reacting an organophosphate, a metal halide and an organofluorine compound (with or without molybendum disulfide), and adding at least a portion of the reaction mixture to a lubricant base.

Abstract: The present invention relates to a lubricating composition containing an oil of lubricating viscosity, a metal containing antiwear agent and a metal containing dispersant. The invention further provides for a method for lubricating a hydraulic system.

Abstract: A lubricating oil composition favorably employable for trunk piston diesel engines contains an overbased sulfurized alkylphenol calcium salt, at least two (preferably three) overbased alkylsalicylic acid calcium salts having different base ratios and hydrocarbyl groups of different carbon atom numbers, a borated ashless dispersant, and a zinc dihydrocarbyldithiophosphate.

Abstract: A lubricating oil composition comprising a base oil of lubricating viscosity having a kinematic viscosity of 22 to 300 mm2/s at 40° C. and dissolved or dispersed therein the following additives in the following amounts based on a total amount of the lubricating oil composition: (1) an overbased sulfurized alkylphenol calcium salt detergent in an amount of 0.5 to 1.0 wt. % in terms of calcium content, (2) an overbased calcium alkylbenzenesulfonate detergent in an amount of 1.5 to 2.1 wt. % in terms of calcium content, (3) a nitrogen-containing ashless dispersant in an amount of 0.005 to 0.1 wt. % in terms of nitrogen content, and (4) a zinc dihydrocarbyldithiophosphate in an amount of 0.007 to 0.1 wt.

Abstract: A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) Mannich reaction product having a tertiary amino group, said Mannich reaction product being prepared from the reaction of a hydrocarbyl-substituted phenol, an aldehyde, and amine; and (b) a quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen and the use of such quaternary ammonium salt detergents in a fuel composition to reduce intake valve deposits.

Abstract: An additive for imparting antiwear properties to a lubricant composition is based on a combination of (1) an organo borate ester composition and (2) one or more sulfur- or phosphorus-containing compounds or a non-sulfur molybdenum compound. The sulfur- or phosphorus-containing compounds are dithiocarbamate, bisdithiocarbamate, 1,3,4-diathiazole, phosphorodithioate, phosphorodithioate esters, and the molybdenum compound is prepared by reacting (a) about 1.0 mole of fatty oil having 12 or more carbon atoms, (b) about 1.0 to 2.5 moles diethanolamine and (c) a molybdenum source.

Abstract: A lubricating oil composition comprising a base oil of lubricating viscosity having a kinematic viscosity of 22 to 300 mm2/s at 40° C. and dissolved or dispersed therein the following additives in the following amounts based on a total amount of the lubricating oil composition: (1) an overbased sulfurized alkylphenol calcium salt detergent in an amount of 0.1 to 1.6 wt. % in terms of calcium content, (2) an overbased calcium alkylbenzenesulfonate detergent in an amount of 0.6 to 2.1 wt. % in terms of calcium content, (3) a nitrogen-containing ashless dispersant in an amount of 0.005 to 0.1 wt. % in terms of nitrogen content, and (4) a zinc dihydrocarbyldithiophosphate in an amount of 0.01 to 0.1 wt.

Abstract: Disclosed are lubricating oil compositions excellent in friction reducing effect and long drain properties and particularly suitable for internal combustion engines, which comprise a lubricating base oil, a specific phosphorus compound in an amount of 0.005 to 0.5 percent by mass in terms of phosphorus based on the total mass of the composition, and at least one additive selected from the group consisting of (C) metallic detergents, (D) ashless dispersants, and (E) anti-oxidants, and further contains (F) a sulfur-containing organic molybdenum complex and (G) an ashless friction modifier and which satisfy prescribed requirements and have a sulfated ash content not exceeding a specified level.

Abstract: Disclosed are lubricating oil additives obtained by dissolving or reacting (A) a metal salt of a specific phosphorus compound which is insoluble or less soluble in lubricating oils in or with (B) an amine compound so as to be solved in the lubricating oils; a lubricating oil composition containing such an additive; a method of producing the additive and composition.

Abstract: Disclosed is a lubricating oil composition containing an oil of lubricating viscosity and a particularly effective mixture of a nitro-substituted diphenylamine and a diarylamine which together provide superior oxidation inhibition.

Abstract: Methods for regenerating or improving the regeneration of a particulate filter and for improving the performance of a particulate filter during the operation of an internal combustion engine comprise lubricating the engine with a lubricant composition comprising additives that when combusted can form an ash deposit in the filter. The methods are particularly useful for diesel particulate filters on diesel engines that are equipped with an exhaust gas recirculation system.

Abstract: A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) Mannich reaction product having a tertiary amino group, said Mannich reaction product being prepared from the reaction of a hydrocarbyl-substituted phenol, an aldehyde, and amine; and (b) a quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen and the use of such quaternary ammonium salt detergents in a fuel composition to reduce intake valve deposits.

Abstract: A lubricating oil with very low phosphorus content, and having long life as evidenced by a reduction in viscosity increase, oxidation and nitration, comprises a major amount of a base oil of lubricating viscosity and a minor amount of a mixture of neutral and overbased metallic detergents, at least a zinc dialkyldithiocarbamate and a zinc dialkyldithiophosphate antiwear additive and at least a dihydrocarbylthiocarbamoyl.

Abstract: The use in a cooled exhaust gas recirculation (EGR) engine of an olefin copolymer dispersant viscosity index improver to reduce or eliminate oil thickening and sludge formation is provided. Also provided are lubricated cooled EGR engines with ability to pass rigorous oil viscosity and emission standards.

Abstract: A machine tool is used for machining a workpiece in the presence of a cutting oil composition. The machine tool includes a tool base and a hard carbon coating formed on the tool base. The hard carbon coating has 1 atomic % or less of hydrogen. The cutting oil composition contains a base oil and at least one of an ashless fatty-ester friction modifier and an ashless aliphatic-amine friction modifier.

Abstract: A lubricating composition containing the reaction product (a) of an aldehyde, amine and a di-secondary alkyl hindered phenol and at least one additive selected from the group consisting of hydrocarbyl diphenylamines, sterically hindered phenols other than component (a), metal hydrocarbyl dithiophosphates, sulphurised olefins and mixtures thereof. The composition has antioxidant properties for internal combustion engines without the bioaccumulation of tris-tert-butyl phenol.

Abstract: This invention relates to a lubricating oil composition, comprising: (A) a base oil; (B) a molybdenum and sulfur containing composition derived from a basic nitrogen containing compound, a molybdenum compound and carbon disulfide; (C) a boron-containing compound; and (D) optionally a phosphorus containing compound, provided the phosphorus content of the lubricating oil composition does not exceed about 0.10% by weight.

Abstract: Disclosed is an additive composition that can be mixed with various types of basic oils to produce a lubricant that can meet the international standards of manual truck gearbox oils. A preferred embodiment includes various quantities of an isobutylene sulfide, zinc dialklydithiophosate and other components. Component properties of the additive composition are selected to produce a lubricant that has good thermal stability, rust-resisting and endurance qualities and that has a low cost of use and production.

Abstract: The lubricating oil of the present invention has a viscosity suitable for use in a diesel engine and includes at least one functionalized olefin polymer, and at least one zinc dialkyl dithiophosphate (ZDDP). The ZDDP is made from a mixture of primary alcohols or a mixture of primary and secondary alcohols, wherein the lubricant has a high boundary film value greater than or equal to 15, and preferably greater than 60, as measured by using a High Frequency Reciprocating Rig (HFRR).

Abstract: The present invention relates to improved lubricant compositions highly resistant to oxidative degradation comprising selected 5-tert.-butyl-4hydroxy-3-methylphenyl substituted fatty acid esters, diphenylamines and zinc dithiophosphates. The compositions as defined above are characterized by superior antioxidative properties. This can be demonstrated in various standard tests such as Deposit and Oxidation Panel Test (DOPT) and Pressurized Differential Scanning Calorimetry (PDSC).

Abstract: This invention relates to a lubricating oil composition used in conjunction with a gasoline fuel having a sulphur content of less than 10 ppm by weight, characterised in that said oil composition has a phosphorus content of no more than 0.05% by weight. The feature of the invention is that the use of a low sulphur fuel enables the amount of anti-wear agents containing phosphorus such as eg ZDDP to be halved without any adverse effect on the anti-wear performance of the lubricating oil.

Abstract: A composition comprising a compound of formula I: wherein W represents O, S—A2, or two groups, R3 and R4; bonds a and b are single or double bonds, provided that one of a and b is a single bond and the other is a double bond; c is a single or double bond, and d is a single bond, double bond, or two single bonds, provided that d is a single bond when c is a double bond, d is not a single bond when c is a single bond, and W is R3 and R4 when d is two single bonds; A1, A2, B1 and B2 are independently hydrogen, alkyl, alkenyl, aralkyl or one of the groups depicted in Scheme 1: and a dithiophosphate.

Abstract: A low viscosity lubricating oil composition having a CCS viscosity less than 3500 mPa.s at −25° C. and having no more than 0.16 mass % of phosphorus which comprises a dispersant, and a detergent of calcium or magnesium or both; and optionally a zinc dihydrocarbyldithiophosphate, a viscosity modifier, a pour point depressant and an antioxidant. The oil satisfies the Cummins M11 cross-head wear engine test specification in a low phosphorus and low viscosity formulation.

Abstract: The lubricating oil of the present invention has a viscosity suitable for use in a diesel engine and includes at least one functionalized olefin polymer, and at least one zinc dialkyl dithiophosphate (ZDDP). The ZDDP is made from a mixture of primary alcohols or a mixture of primary and secondary alcohols, wherein the lubricant has a high boundary film value greater than or equal to 15, and preferably greater than 60, as measured by using a High Frequency Reciprocating Rig (HFRR).

Abstract: Disclosed are methods and lubricant compositions for reducing wear in internal combustion engines lubricated with a low phosphorus content lubricating oil. The lubricant compositions of this invention comprise a synergistic combination of a complex of a molybdenum/nitrogen containing compound and at least one phosphorus-containing compound wherein the total phosphorus employed in the composition is no more than about 0.06 weight percent based on the total weight of the composition.

Abstract: A lubricating oil composition employable in combination with a low sulfur content fuel oil is preferably composed of a base oil having a sulfur content of at most 0.2 wt. %, an ashless dispersant comprising an alkenyl- or alkyl-succinimide or a derivative thereof, a metal-containing detergent containing an organic acid metal salt, a zinc dialkyldithiophosphate, a zinc dialkylaryldithiophosphate, and an oxidation inhibitor selected from the group consisting of a phenol compound, an amine compound, and a molybdenum-containing compound, wherein a ratio of the phosphorus content of the zinc dialkyldithiophosphate to the phosphorus content of the zinc dialkylaryldithiophosphate is in the range of 20:1 to 2:1.

Abstract: A low-phosphorus lubricant comprises: an oil of lubricating viscosity; a nitrogen-containing and a nitrogen-free dispersant; a metal dihydrocarbyl dithiophosphate; and a hydrocarbyl-substituted carboxylic acid derivative, the ratio of the dispersants being such as to provide suitable fluoroelastomer seal compatibility.

Abstract: This invention relates to a lubricating oil composition, comprising:

Abstract: Concentrates for lubricating oil compositions are prepared by blending at elevated temperature: (A) at least one high molecular weight ashless dispersant; and (B) at least one oil-soluble metal detergent; in the presence of (C) at least one metal salt of a dihydrocarbylphosphorodithoic acid wherein the metal of the metal salt is an alkali metal, an alkaline earth metal, or zinc, aluminium, lead, tin, molybdenum, manganese, nickel or copper.

Abstract: A composition comprising: a high-sulfur API Group I mineral oil base stock; a molybdenum dithiocarbamate in an amount suitable to provide 50 to about 600 ppm molybdenum to the composition; a succinimide dispersant based on a polyolefin-substituted succinic structure, where the polyolefin has a number average molecular weight of at least 1500; a zinc dialkyldithiophosphate derived from at least one secondary alcohol; and a hindered phenol, alkylated aromatic amine, or sulfurized olefin oxidation inhibitor, is capable of passing a Sequence III test.

Abstract: A lubricating oil composition having a low P content of 0.01 to 0.1 wt. %, and a sulfated ash of 0.1 to 1 wt. %, which is composed of a) a major amount of mineral base oil having a low S content of at most 0.1 wt. %; b) an ashless alkenyl or alkyl-succinimide dispersant; c) a metal-containing detergent (non-sulfurized alkali metal or alkaline earth metal salt of an alkylsalicylic acid and/or non-sulfurized alkali metal or alkaline earth metal salt of an alkylphenol derivative having a Mannich base structure); d) Zn-DTP; e) an oxidation inhibitor (phenol compound and/or amine compound) and wherein the sulfur content is 0.01 to 0.3 wt %. The lubricating oil composition shows good high temperature detergency notwithstanding its low S, P, and sulfated ash content, and is favorably employable in diesel engines using fuel of an extremely low sulfur content.

Abstract: A composition of an antioxidant of the formula where R3 is an alkyl group of 2 to 6 carbon atoms, and a dispersant or a detergent, is a useful additive package for lubricant compositions.

Abstract: A lubricating oil composition containing a base oil of lubricating viscosity, overbased sulfurized alkylphenate detergent or its calcium salt, an overbased alkylsulfonate detergent or its calcium salt, an ashless dispersant, and a zinc dialkyldithiophosphate and/or zinc diaryidithiophosphate is described. The lubricating oil composition provides improved heat stability and anti-wear performance in marine diesel engines operated under severe conditions where the cylinder liner temperature may reach 200 to 260° C.

Abstract: A low phosphorous lubricating oil composition for internal combustion engines comprising an alkylthiocarbamate compound of the formula: wherein each of R1, R2, R3, and R4 independently represents an alkyl group of 1-18 carbon atoms, and (X) represents S, S—S, S—CH2—S, S—CH2CH2—S, S—CH2CH2CH2—S, or S—CH2CH(CH3)—S, and additive compositions and additive packages utilizing the above compound.

Abstract: Disclosed is an additive composition that can be mixed with various types of basic oils to produce a lubricant that can meet the international standards of manual truck gearbox oils. A preferred embodiment includes various quantities of an isobutylene sulfide, zinc dialklydithiophosate and other components. Component properties of the additive composition are selected to produce a lubricant that has good thermal stability, rust-resisting and endurance qualities and that has a low cost of use and production.

Abstract: Lubricating oil compositions exhibititing improved low temperature valve train wear performance with a lowered phosphorus content, which contain a reduced amount of a metal hydrocarbyl dithiophosphate, a molybdenum compound, a metal-free friction modifier and a phosphorus-free antioxidant.

Abstract: This invention relates to a lubricating composition comprising a blend of a major amount of an oil of lubricating viscosity, gear or transmission oil package and a top treatment which comprises at least one saturated fatty phosphate ester or salt, wherein the lubricating composition is free of saturated fatty phosphites. Tin another embodiment, the invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, at least one saturated fatty phosphate ester or salt, at least one polysulfide and at least one phosphorus antiwear or extreme pressure agent, wherein the lubricating composition is free of saturated fatty phosphites. The invention relates to additive combinations which when added to a lubricant can provide and improve frictional and, optionally, thermal stability properties. The additives include a phosphate ester or salt wherein the hydrocarbyl group of the phosphate is a fatty-saturated group.

Abstract: Disclosed is a grease sealed bearing for automobile that has the high temperature resistance as well as shear stability, and prevents the noise at low temperature as well as the brittle flaking under high speed rotation and high load. The grease comprises a base oil containing a synthesized hydrocarbon oil and one or more ester oils at a weight ratio of 0.1 to 0.49:0.9 to 0.51; 5 to 30% by weight of a urea based thickener, and 0.1 to 10% by weight of dithiozinc phosphate based on the whole grease. The grease sealed bearing for automobile is obtained by sealing a bearing used in a device driven by an automobile engine with the grease.

Abstract: A low-phosphorus lubricant comprises:

Abstract: This invention relates to a lubricating composition comprising a blend of a major amount of an oil of lubricating viscosity, gear or transmission oil package and a top treatment which comprises at least one saturated fatty phosphate ester or salt, wherein the lubricating composition is free of saturated fatty phosphites. Tin another embodiment, the invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, at least one saturated fatty phosphate ester or salt, at least one polysulfide and at least one phosphorus antiwear or extreme pressure agent, wherein the lubricating composition is free of saturated fatty phosphites. The invention relates to additive combinations which when added to a lubricant can provide and improve frictional and, optionally, thermal stability properties. The additives include a phosphate ester or salt wherein the hydrocarbyl group of the phosphate is a fatty-saturated group.

Abstract: Grease composition for constant velocity joints comprising a base oil and urea-based thickener, which grease further comprises, (A) from 0.1 to 10% by weight of an optionally substituted molybdenum-organocyclic compound containing at least 5 ring atoms, wherein each ring atom attached directly to the molybdenum atom is a hetero atom, (B) from 0.1 to 5% by weight of at least one sulphur-containing additive chosen from the group consisting of sulphur olefins, sulphur-phosphorus extreme-pressure agents, ashless dithiocarbamates, polysulphides, thiadiazoles and zinc dithiocarbamate, and (C) from 0.1 to 5% by weight of at least one phosphorous-containing additive chosen from the group consisting of molybdenum dithiophosphate, zinc dithiophosphate and triphenylphosphorothionate; a method of lubricating a constant velocity joint comprising packing it with said grease and a constant velocity joint packed with said grease.

Abstract: The present invention relates to improved lubricant compositions highly resistant to oxidative degradation comprising selected 5-tert. -butyl-4hydroxy-3-methylphenyl substituted fatty acid esters, diphenylamines and zinc dithiophosphates. The compositions as defined above are characterized by superior antioxidative properties. This can be demonstrated in various standard tests such as Deposit and Oxidation Panel Test (DOPT) and Pressurized Differential Scanning Calorimetry (PDSC).

Abstract: A low viscosity lubricating oil composition having a CCS viscosity less than 3500 mPa.s at −25° C. and having no more than 0.16 mass % of phosphorus which comprises a dispersant, and a detergent of calcium or magnesium or both; and optionally a zinc dihydrocarbyldithiophosphate, a viscosity modifier, a pour point depressant and an antioxidant. The oil satisfies the Cummins M11 cross-head wear engine test specification in a low phosphorus and low viscosity formulation.

Abstract: A composition of an antioxidant of the formula 1