A coffee lubricant having nanoparticles is provided. It consists of 36 to 40 wt % of glycerin, 1 to 7 wt % of gum arabic, 0.3 to 1.3 wt % of nanoparticles, and remaining part of coffee biofuel. In which, the nanoparticles are CuO. The coffee biofuel is extracted from coffee dregs and has a viscosity of 60 to 70 cSt at a temperature of 40 degrees Celsius. It can reduce the friction coefficient and operating temperature. In addition, it can replace the mineral oil.

A coffee lubricant having nanoparticles is provided. It consists of 36 to 40 wt % of glycerin, 1 to 7 wt % of gum arabic, 0.3 to 1.3 wt % of nanoparticles, and remaining part of coffee biofuel. In which, the nanoparticles are CuO. The coffee biofuel is extracted from coffee dregs and has a viscosity of 60 to 70 cSt at a temperature of 40 degrees Celsius. It can reduce the friction coefficient and operating temperature. In addition, it can replace the mineral oil.

The invention provides a lubricating oil composition for diesel engines which contains a GTL base oil with a kinematic viscosity at 100 C. of 4.5 to 5.5 mm2/s, a comblike PMA (polymethacrylate) based viscosity index improver and a boron-containing dispersant and/or boron-containing detergent, the total content of the boron-containing dispersant and/or boron-containing detergent in terms of conversion to boron content relative to the total amount of the composition being not less than 0.025 mass %, and which satisfies 0W-30 or 5W-30 in the SAE J300 standard.

The invention provides a lubricating oil composition for diesel engines which contains a GTL base oil with a kinematic viscosity at 100 C. of 4.5 to 5.5 mm2/s, a comblike PMA (polymethacrylate) based viscosity index improver and a boron-containing dispersant and/or boron-containing detergent, the total content of the boron-containing dispersant and/or boron-containing detergent in terms of conversion to boron content relative to the total amount of the composition being not less than 0.025 mass %, and which satisfies 0W-30 or 5W-30 in the SAE J300 standard.

A lubricant composition includes a mixture of grease and wax formed into a block which is solid at atmospheric pressure and temperatures up to 150 F., and which transforms into a semi-solid under mechanical loading. The mixture is formed with 5-25% of melted wax. The block may be coated to form a shell to remain solid at elevated temperatures. The block may include other additives. The grease block is suitable for use in various applications, including on a 5.sup.th wheel trailer hitch plate.

A lubricant composition includes a mixture of grease and wax formed into a block which is solid at atmospheric pressure and temperatures up to 150 F., and which transforms into a semi-solid under mechanical loading. The mixture is formed with 5-25% of melted wax. The block may be coated to form a shell to remain solid at elevated temperatures. The block may include other additives. The grease block is suitable for use in various applications, including on a 5.sup.th wheel trailer hitch plate.

Provided is a lubricating oil composition and method of using such a composition that provides for improved high temperature deposit resistance. The composition includes a lubricating oil base stock at from 20 to 95 wt % of the composition, at least one ashless organic friction modifier at from 0.1 to 20 wt % of the composition, and at least one overbased detergent at from 0.1 to 20 wt % of the composition. The remainder of composition includes one or more other lubricating oil additives. The deposit resistance of the lubricating oil composition as measured by TEOST 33C total deposits is at least 20% lower than the deposit resistance for a comparable lubricating oil composition not including the combination of the at least one ashless organic friction modifier and the at least one overbased detergent.

Provided is a lubricating oil composition and method of using such a composition that provides for improved high temperature deposit resistance. The composition includes a lubricating oil base stock at from 20 to 95 wt % of the composition, at least one ashless organic friction modifier at from 0.1 to 20 wt % of the composition, and at least one overbased detergent at from 0.1 to 20 wt % of the composition. The remainder of composition includes one or more other lubricating oil additives. The deposit resistance of the lubricating oil composition as measured by TEOST 33C total deposits is at least 20% lower than the deposit resistance for a comparable lubricating oil composition not including the combination of the at least one ashless organic friction modifier and the at least one overbased detergent.

A lubricant for firearms includes a base and nanoparticles dispersed throughout the base. The base may include a hydrocarbon or a mixture of hydrocarbons. The base may be in a liquid form or in a semisolid form. Fat from an animal source, such as porcine fat or, more specifically, bacon fat, may be employed as a hydrocarbon of the base. Fat from an animal source may be rendered or otherwise clarified. The nanoparticles may include nanospheres, which may have an average diameter of about 100 nm or less. The lubricant may also include a hydrocarbon from a vegetable source (e.g., a vegetable oil, etc.), a hydrocarbon from a petrochemical source, and/or a synthetic petrochemical lubricant. The lubricant may include a fragrance to impart it with a desired scent (e.g., a bacon scent, etc.). Methods for lubricating and cleaning metallic surfaces of firearms are also disclosed. In such a method, nanoparticles from a lubricant may be introduced into and retained within microscopic crevices in the metallic surfaces.

A lubricant for firearms includes a base and nanoparticles dispersed throughout the base. The base may include a hydrocarbon or a mixture of hydrocarbons. The base may be in a liquid form or in a semisolid form. Fat from an animal source, such as porcine fat or, more specifically, bacon fat, may be employed as a hydrocarbon of the base. Fat from an animal source may be rendered or otherwise clarified. The nanoparticles may include nanospheres, which may have an average diameter of about 100 nm or less. The lubricant may also include a hydrocarbon from a vegetable source (e.g., a vegetable oil, etc.), a hydrocarbon from a petrochemical source, and/or a synthetic petrochemical lubricant. The lubricant may include a fragrance to impart it with a desired scent (e.g., a bacon scent, etc.). Methods for lubricating and cleaning metallic surfaces of firearms are also disclosed. In such a method, nanoparticles from a lubricant may be introduced into and retained within microscopic crevices in the metallic surfaces.