This disclosure describes a lubricating oil composition. The composition includes a major amount of base oil; and a lubricant additive having the following structure:

##STR00001##

where each R.sup.1 is independently a hydrocarbyl group having 10 to 400 carbons; X is an alkyl, aryl, or heteroaromatic group having 1 to 10 carbons; Y is nitrogen, oxygen, or sulfur; each R.sup.2 is independently a hydrocarbyl group having 1 to 9 carbons; Z is nitrogen, oxygen, or sulfur, and each R.sup.3 is independently a hydrogen or hydrocarbyl group having 1 to 9 carbons with one or more nitrogen, oxygen, or sulfur functionalization, where p is 1 to 3, n is 1 to 20 and m is 0 to 3.

This disclosure relates to the use of di(alkyl substituted phenyl)amine antioxidants as additives in lubricant compositions having good oxidation properties in engine crankcase applications, especially in compression ignited engine and or spark ignited engine applications, where the antioxidant comprises from 0 to 15 mass % of mono-C.sub.9-alkyl substituted diphenyl amine and tri-C.sub.9-alkyl substituted diphenyl amine, and 85 to 100 mass % di-C.sub.9-alkyl substituted phenyl amines based upon the weight of the mono-, di- and tri-C.sub.9-alkyl substituted phenyl amines.

This disclosure relates to the use of di(alkyl substituted phenyl)amine antioxidants as additives in lubricant compositions having good oxidation properties in engine crankcase applications, especially in compression ignited engine and or spark ignited engine applications, where the antioxidant comprises from 0 to 15 mass % of mono-C.sub.9-alkyl substituted diphenyl amine and tri-C.sub.9-alkyl substituted diphenyl amine, and 85 to 100 mass % di-C.sub.9-alkyl substituted phenyl amines based upon the weight of the mono-, di- and tri-C.sub.9-alkyl substituted phenyl amines.

This invention relates to a lubricating oil composition having reduced viscosity and improved fuel economy comprising: a) 50 to 99 wt % of one or more Group III, III+, and/or IV base oils; b) 0.1 to 15 wt % of a functionalized olefin copolymer having an M.sub.n of from 10,000 to 35,000 g/mol; c) 0.1 to 20 wt % of one or more detergents comprising at least one calcium detergent having a TBN of more than 100 mg KOH/g; at least one calcium detergent having a TBN of 100 mg KOH/g or less; and at least one magnesium detergent, where the difference in the TBN's for the Ca detergents is at least 100 mg KOH/g; d) 0.01 to 40 wt % of one or more dispersants comprising at least one borated dispersant and at least one non-borated dispersant; e) 0.01 to 20 wt % odsulfurized fatty acid ester; f) 0.01 to 5 wt % of one or more amine or phenol based antioxidants; and g) 0.001 to 15 wt % of molybdenum-containing compound.

This invention relates to a lubricating oil composition having reduced viscosity and improved fuel economy comprising: a) 50 to 99 wt % of one or more Group III, III+, and/or IV base oils; b) 0.1 to 15 wt % of a functionalized olefin copolymer having an M.sub.n of from 10,000 to 35,000 g/mol; c) 0.1 to 20 wt % of one or more detergents comprising at least one calcium detergent having a TBN of more than 100 mg KOH/g; at least one calcium detergent having a TBN of 100 mg KOH/g or less; and at least one magnesium detergent, where the difference in the TBN's for the Ca detergents is at least 100 mg KOH/g; d) 0.01 to 40 wt % of one or more dispersants comprising at least one borated dispersant and at least one non-borated dispersant; e) 0.01 to 20 wt % odsulfurized fatty acid ester; f) 0.01 to 5 wt % of one or more amine or phenol based antioxidants; and g) 0.001 to 15 wt % of molybdenum-containing compound.

The present invention relates to turbine oil, comprising a mixture of paraffinic oils, an antioxidant and corrosion inhibitor package, polyisobutylene bisuccinimide ashless dispersant, polymethyl methacrylate pour point depressant and an organo-modified siloxane antifoam, and a method for manufacturing a turbine oil, comprising: placing a mixture of paraffinic oils in a beaker; heating the mixture of paraffinic oils to a temperature of approximately 50 C., with moderate stirring, without forming vortex that introduce air into the oil, to give homogeneity; without suspending stirring or heating, on the mixture of hot paraffinic oils, adding the antioxidant additive; without suspending stirring or heating, on the mixture of paraffinic oils adding the dispersant additive; andcontinuing stirring until a homogeneous mixture is obtained.

The present invention relates to turbine oil, comprising a mixture of paraffinic oils, an antioxidant and corrosion inhibitor package, polyisobutylene bisuccinimide ashless dispersant, polymethyl methacrylate pour point depressant and an organo-modified siloxane antifoam, and a method for manufacturing a turbine oil, comprising: placing a mixture of paraffinic oils in a beaker; heating the mixture of paraffinic oils to a temperature of approximately 50 C., with moderate stirring, without forming vortex that introduce air into the oil, to give homogeneity; without suspending stirring or heating, on the mixture of hot paraffinic oils, adding the antioxidant additive; without suspending stirring or heating, on the mixture of paraffinic oils adding the dispersant additive; andcontinuing stirring until a homogeneous mixture is obtained.