A lubricating oil composition for a push-belt continuously variable transmission includes: (A) a lubricant base oil including at least one wax-isomerized base oil, and having a specific kinematic viscosity and a specific viscosity index; (B) a poly(meth)acrylate having a specific weight average molecular weight; (C) a boron-containing succinimide compound; (D) a borate ester compound; and (E) an overbased calcium detergent, wherein the composition has a kinematic viscosity at 40 C. of no more than 25 mm.sup.2/s; a viscosity index of no less than 180; and the ratio of a boron content to a calcium content of 0.5 to 1.5.

The disclosed technology relates to an automotive gear oil, which may be used, for example, in heavy duty manual transmissions and axles, and includes an oil of lubricating viscosity, 1 wt % or less of a dispersant, and at least one boron containing compound.

The disclosed technology relates to an automotive gear oil, which may be used, for example, in heavy duty manual transmissions and axles, and includes an oil of lubricating viscosity, 1 wt % or less of a dispersant, and at least one boron containing compound.

A borate ester represented by the following formula:

##STR00001##

where R.sup.1 is a hydrocarbon chain, R.sup.2 and R.sup.3 are independently either a hydrogen atom or a hydrocarbon chain, and m and n are independently from 1 to 5.

A borate ester represented by the following formula:

##STR00001##

where R.sup.1 is a hydrocarbon chain, R.sup.2 and R.sup.3 are independently either a hydrogen atom or a hydrocarbon chain, and m and n are independently from 1 to 5.

A liquid composition which has an excellent coating property at room temperature and is retained on a surface to be coated after application on the surface, and a terminal-fitted electric wire having an increased corrosion resistance using the same. The liquid composition contains a high-consistency material, a low-viscosity liquid having a kinetic viscosity of 100 mm.sup.2/s or lower measured at 40 C. in accordance with JIS K2283, and an adduct containing an acidic phosphate ester containing one or more kinds of compounds represented by General Formulae (1) and (2), and a metal,
P(O)(OR.sub.1)(OH).sub.2(1),
P(O)(OR.sub.1).sub.2(OH)(2),
where R.sub.1 represents a hydrocarbon group having 4 to 30 carbon atoms.

A liquid composition which has an excellent coating property at room temperature and is retained on a surface to be coated after application on the surface, and a terminal-fitted electric wire having an increased corrosion resistance using the same. The liquid composition contains a high-consistency material, a low-viscosity liquid having a kinetic viscosity of 100 mm.sup.2/s or lower measured at 40 C. in accordance with JIS K2283, and an adduct containing an acidic phosphate ester containing one or more kinds of compounds represented by General Formulae (1) and (2), and a metal,
P(O)(OR.sub.1)(OH).sub.2(1),
P(O)(OR.sub.1).sub.2(OH)(2),
where R.sub.1 represents a hydrocarbon group having 4 to 30 carbon atoms.

Provided are a lubricating oil composition containing a base oil, a specific thiophosphate compound (A) and a molybdenum-based compound (B), which exhibits excellent wear resistance and has a low friction coefficient in a broad range of contact pressures ranging from high to low; and a precision reduction gear using the lubricating oil composition.

The invention provides a lubricating composition containing an oil of lubricating viscosity, an ashless thiocarbamate compound having an optionally-substituted hydrocarbyl group on an S-atom and an optionally-substituted hydrocarbyl group on an N-atom, and a boron-containing compound. The invention further relates to a method of lubricating an internal combustion engine with the lubricating composition.

Lubricating oil composition is provided. The composition includes several components including a major amount of a base oil, a mixture of alkylated diphenylamines having a weight ratio of mono-alkylated diphenylamine to di-alkylated diphenylamine ranging from 0.6 to 4.0, and a molybdenum or sulfur additive that provides synergistic enhancement of oxidation stability in combination with the mixture of alkylated diphenylamines.