An auxiliary lubricant comprising a composition, the comprising intermediate molecular weight surfactant-functionalized nanoparticles dispersed in a base oil.

A fuel composition, a lubricant composition, and methods for reducing friction or wear of moving parts. The fuel composition includes gasoline and from about 10 to about 500 ppm by weight of a dialkylaminoalkanol of the formula R.sup.1(R.sup.2)NCH.sub.2CH(R.sup.3)R.sup.4. The lubricant composition includes base oil of lubricating viscosity and from about 0.05 to about 5.0 weight percent of a dialkylaminoalkanol of the formula R.sup.1(R.sup.2)NCH.sub.2CH(R.sup.3)R.sup.4. In the above formulas wherein R.sup.1 is an alkyl group or a hydroxyalkyl group containing from 8 to 50 carbon atoms; R.sup.2 is an alkyl group containing from 1 to 4 carbon atoms; R.sup.3 is selected from H and OH; and R.sup.4 is selected from H, an alkyl group containing from 1 to 4 carbon atoms, and CH.sub.2OH and wherein at least one of R.sup.3 and R.sup.4 contains a hydroxyl group and provided that when R.sup.1 is a hydroxyalkyl group, R.sup.3 is OH and R.sup.4 is CH.sub.2OH.

A lubricating oil composition according to one embodiment of the present invention contains an oxygen-containing synthetic base oil having an oxygen content (A) of from 15 to 40 mass % and a kinetic viscosity at 100 C. of from 0.5 to 50 mm.sup.2/s, and a viscosity index improver that is an oxygen-containing compound having an oxygen content (B) of from 15 to 40 mass % and a kinetic viscosity at 100 C. of 11,000 mm.sup.2/s or more, a mass ratio of the oxygen-containing synthetic base oil and the viscosity index improver being from 99.5:0.5 to 75:25, and a ratio (A/B) of the oxygen content (A) of the oxygen-containing synthetic base oil to the oxygen content (B) of the viscosity index improver being in a range of from 0.5 to 2.

The objective is to provide lubrication oil and internal-combustion engine fuel for reducing the fuel consumption and for reducing carbon dioxide and other exhaust gas components. The lubrication oil is injected with lubrication oil impregnating agent composed of dimethylalkyl tertiary amine in the range from 0.01 to 1 volume % and desirably in the range from 0.1 to 0.5 volume %. Petroleum oil fuel is injected with fuel oil impregnating agent composed of dimethylalkyl tertiary amine in the range from 0.5 to 1 volume %. The petroleum oil fuel is light oil, kerosene, gasoline, or Bunker A. Any one or both of these lubrication oil and petroleum oil fuel is/are used for an internal-combustion engine.

A low friction wear surface with a coefficient of friction in the superlubric regime under a sliding and rolling movement. The low friction wear surface includes molybdenum disulfide and graphene oxide on a first wear surface with a tribolayer formed on a rough steel counter surface during the sliding and rolling movement. Methods of producing the low friction wear surface are also provided.

Systems and methods are provided for producing lubricant basestocks having a reduced or minimized aromatics content. A first processing stage can perform an initial amount of hydrotreating and/or hydrocracking. A first separation stage can then be used to remove fuels boiling range (and lower boiling range) compounds. The remaining lubricant boiling range fraction can then be exposed under hydrocracking conditions to a USY catalyst including a supported noble metal, such as Pt and/or Pd. The USY catalyst can have a desirable combination of catalyst properties, such as a unit cell size of 24.30 or less (or 24.24 or less), a silica to alumina ratio of at least 50 (or at least 80), and an alpha value of 20 or less (or 10 or less). In some aspects, the effluent from the second (hydrocracking) stage can be dewaxed without further separation. In such aspects, a portion of the dewaxed effluent can be used as a recycle quench stream to cool the hydrocracking effluent prior to entering the dewaxing reactor.

A lubricant composition comprises as a lubricant base, an oil soluble polyalkylene glycol suitable for use as a lubricant in an industrial oil, grease or metal working fluid; and an additive comprising (1) alkylated phenyl--naphthylamine; and (2) 2,2,4-trialkyl-1,2-dihydroquinoline.

The disclosed technology relates to a dispersant composition comprising the reaction product of a polyolefin acylating agent and an amine terminated or hydroxyl terminated polyether. In addition, the technology relates to lubricating compositions containing the dispersant composition and an optional synergistic amount of another dispersant, as well as methods of employing the dispersant composition in an engine and engine oils.

A fuel composition, a lubricant composition, and methods for reducing friction or wear of moving parts. The fuel composition includes gasoline and from about 10 to about 500 ppm by weight of a dialkylaminoalkanol of the formula R.sup.1(R.sup.2)NCH.sub.2CH(R.sup.3)R.sup.4. The lubricant composition includes base oil of lubricating viscosity and from about 0.05 to about 5.0 weight percent of a dialkylaminoalkanol of the formula R.sup.1(R.sup.2)NCH.sub.2CH(R.sup.3)R.sup.4. In the above formulas wherein R.sup.1 is an alkyl group or a hydroxyalkyl group containing from 8 to 50 carbon atoms; R.sup.2 is an alkyl group containing from 1 to 4 carbon atoms; R.sup.3 is selected from H and OH; and R.sup.4 is selected from H, an alkyl group containing from 1 to 4 carbon atoms, and CH.sub.2OH and wherein at least one of R.sup.3 and R.sup.4 contains a hydroxyl group and provided that when R.sup.1 is a hydroxyalkyl group, R.sup.3 is OH and R.sup.4 is CH.sub.2OH.

A low friction assembly is desired. The present invention relates to a new low-friction lubrication assembly comprising a first member relatively slidable against a second member, the first member having chemical affinity with an OH-group on its sliding surface; and one or more oxygen containing compounds, provided on the sliding surface of the first member and being able to produce a tribofilm attached to the sliding surface of the first member through hydrogen bond interactions. Preferably the second member comprises a similar OH-terminated sliding surface wherein an oxygen containing compound (lubricant)-supported interface between the first and second sliding surfaces results in a H- and/or OH-terminated interface developing repulsive forces thereinbetween.