Lubricating composition

Abstract

There is disclosed a lubricant composition comprising a base oil, wherein the ratio of isoparaffins to normal paraffins in the base oil ranges from about 30 to about 400.

1 . A lubricant composition comprising a base oil, wherein the ratio of isoparaffins to normal paraffins in the base oil ranges from about 30 to about 400. 
     
     
         2 . The lubricant composition of  claim 1 , wherein the ratio of isoparaffins to normal paraffins in the base oil ranges from about 50 to about 300. 
     
     
         3 . The lubricant composition of  claim 1 , wherein the base oil further comprises an average paraffin carbon number less than about 23. 
     
     
         4 . The lubricant composition of  claim 1 , further comprising a detergent inhibitor package comprising at least one additive selected from the group consisting of oxidation inhibitors, corrosion inhibitors, friction modifiers, antiwear agents, extreme pressure agents, detergents, dispersants, antifoam agents, pour point depressants, deodorizers, seal swell agents, demulsifiers, coloring agents, and fluidizing agents. 
     
     
         5 . The lubricant composition of  claim 3 , wherein the detergent is selected from the group consisting of overbased phenates, overbased salicylates, overbased sulfonates, overbased carboxylates, and mixtures thereof. 
     
     
         6 . The lubricant composition of  claim 3 , wherein the viscosity index improver is selected from the group consisting of a nitrogen-containing polymeric viscosity index improver dispersant, an ester-containing polymeric viscosity index improver dispersant, and a non-dispersant viscosity index improver. 
     
     
         7 . The lubricant composition of  claim 3 , wherein the viscosity index improver is a copolymer of ethylene and an α-olefin selected from the group consisting of propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene, 1-decene, and styrene. 
     
     
         8 . The lubricant composition of  claim 3 , wherein the pour point depressant is selected from the group consisting of polymethacrylates, polyacrylamides, condensation products of haloparaffin waxes and aromatic compounds, vinyl carboxylate polymers, and terpolymers of dialkylfumarates, vinyl esters of fatty acids, and alkyl vinyl ethers. 
     
     
         9 . The lubricant composition of  claim 1 , further comprising at least one additive selected from the group consisting of phosphorus-containing compounds, ash-containing detergents, ashless-detergents, overbased detergents, supplemental pour point depressants, supplemental viscosity index improvers, ash-containing friction modifier, ashless friction modifier, nitrogen-containing friction modifier, nitrogen-free friction modifier, esterified friction modifier, supplemental extreme pressure agents, rust inhibitors, supplemental antioxidants, supplemental corrosion inhibitors, supplemental anti-foam agents, titanium compounds, titanium complexes, organic soluble molybdenum compounds, organic soluble molybdenum complexes, boron-containing compounds, and boron-containing complexes. 
     
     
         10 . A method of improving torque in a machine comprising:
 providing to the machine a composition comprising a base oil, wherein the ratio of isoparaffins to normal paraffins in the base oil ranges from about 30 to about 400.   
     
     
         11 . The method of  claim 16 , wherein the base oil is mineral, synthetic, and a mixture thereof. 
     
     
         12 . The method of  claim 16 , wherein the base oil is a polyalphaolefin. 
     
     
         13 . The method of  claim 16 , wherein the base oil is a Group II+base oil. 
     
     
         14 . The method of  claim 16 , wherein the base oil is a Group III base oil. 
     
     
         15 . A method of improving torque in a machine comprising:
 providing to the machine a composition comprising a base oil having reduced high temperature high shear viscosity as compared to another base oil.   
     
     
         16 . A method of increasing fuel economy in a vehicle comprising:
 providing to the vehicle a composition comprising a base oil, wherein the ratio of isoparaffins to normal paraffins in the base oil ranges from about 30 to about 400.   
     
     
         17 . A method of reducing thin-film friction of a fluid between surfaces comprising:
 providing to the surfaces a composition comprising a base oil, wherein the ratio of isoparaffins to normal paraffins in the base oil ranges from about 30 to about 400.   
     
     
         18 . An engine, transmission, or gear set lubricated with the lubricant composition according to  claim 1 .