Provided are: a lubricating oil composition containing a mineral oil (A) having a kinematic viscosity at 40° C. of 5 to 15 mm.sup.2/s and a flash point of 180° C. or higher, a synthetic oil (B) having a kinematic viscosity at 40° C. of 5 to 15 mm.sup.2/s and a flash point of 190° C. or higher, an amide compound (C) and a polyol ester compound (D), which has a low viscosity and fuel saving performance, which can be used in high-temperature environments, and which has excellent gear anti-seizing property and anti-shudder performance; and a lubrication method and a transmission using the lubricating oil composition.

The present disclosure provides a lubricating composition that includes one or more boron-containing compounds and method of forming the same. The lubricating composition includes one or more boron-containing compounds, one or more metal-based detergents, one or more amine-based antioxidants, one or more phenol-based antioxidants, and a base oil balance. The lubricating composition includes greater than or equal to about 60 ppm to less than or equal to about 300 ppm of boron atoms that define the one or more boron-containing compounds; greater than or equal to about 1,100 ppm of metal atoms that define the one or more metal-based detergents; greater than or equal to about 0.70 wt. % to less than or equal to about 2.00 wt. % of the one or more amine-based antioxidants; and greater than or equal to about 0.30 wt. % to less than or equal to about 2.00 wt. %, of the one or more phenol-based antioxidants.

Provided are: a lubricating oil composition that contains a base oil (A) containing an alkylnaphthalene (A1) and an ester compound (A2), wherein the content ratio of the component (A1) to the component (A2) [(A1)/(A2)] is 15/85 to 85/15 as a ratio by mass, and a tenter device using the lubricating oil composition. The lubricating oil composition has a small evaporation loss, has a suppressed amount of evaporation, maintains good fluidity and hardly causes adherence of residue even in long-term use in high-temperature environments.

A method of lubricating metal articles (6), in particular those made of steel, comprising the application (4) of a dispersion comprising a lubricant oil and a lubricant powder to an article to be drawn. A drawing method comprising the lubrication as described above and a lubricant dispersion.

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.

Provided is a grease containing a base oil and a hydrophilic nanofiber, the hydrophilic nanofiber having a thickness (d) of 0.01 to 500 nm being dispersed therein. The grease is low in an environmental load and excellent in safety on the human body and also has an appropriate worked penetration and has a high dropping point, and therefore, it is also excellent in heat resistance.

The disclosure relates to an electrocrushing drilling fluid with an electrocrushing drilling base fluid including a non-polar oil, water, and glycerin. The base fluid may further include a polar oil and an alkylene carbonate. The electrocrushing drilling fluid may further contain at least one additive. The electrocrushing drilling fluid may have a dielectric constant or dielectric strength of at least a set amount, an electric conductivity less than a set amount, or a combination of these properties. The disclosure further relates to an electrocrushing drilling system containing the electrocrushing drilling fluid and an electrocrushing drill bit.

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.

The disclosure relates to an electrocrushing drilling fluid with an electrocrushing drilling base fluid including a non-polar oil, water, and glycerin. The base fluid may further include a polar oil and an alkylene carbonate. The electrocrushing drilling fluid may further contain at least one additive. The electrocrushing drilling fluid may have a dielectric constant or dielectric strength of at least a set amount, an electric conductivity less than a set amount, or a combination of these properties. The disclosure further relates to an electrocrushing drilling system containing the electrocrushing drilling fluid and an electrocrushing drill bit.

A product resulting from the reaction of at least: a hydroxybenzoic acid, optionally substituted by a hydrocarbyl group, a boron compound, an amine component selected from compounds including two or three amine functions, wherein at least one amine function is substituted by at least one hydrocarbyl group. A lubricant composition including this product. Use of this product as a lubricant for two-stroke marine engines and four-stroke marine engines, more preferably two-stroke marine engines.