Abstract: A method of operating a hydraulic pump, comprising: a. filling a hydraulic system oil reservoir with a hydraulic oil comprising: i. a lubricant base oil having defined properties: and ii. an antiwear hydraulic oil additive package; wherein the hydraulic oil has an air release at 50° C. less than 0.8 minutes; and b. operating the hydraulic pump without pump cavitation. A hydraulic system, comprising a hydraulic system oil reservoir holding a hydraulic oil comprising: i. a lubricant base oil, optionally having defined properties; and b. an antiwear hydraulic oil additive package; wherein the hydraulic oil has an air release at 50° C. less than 0.8 minutes. In one embodiment the hydraulic oil additionally has low foam tendency and good demulsibility.

Abstract: This invention provides a hydraulic oil comprising: 1) a lubricant base oil having an average molecular weight greater than 475, a viscosity index greater than 140, and a weight percent olefins less than 10; and 2) an antiwear hydraulic oil additive package. The hydraulic oil of this invention has an air release by ASTM D 3427-03 of less than 0.8 minutes at 50 degrees C., and a sequence II foam tendency by ASTM D 892-03 of less than 50 ml. We describe a process for making the hydraulic oil of this invention, and a method of operating a hydraulic pump without pump cavitation using the hydraulic oil of this invention.

Abstract: A multigrade automotive gear lubricant comprising a base oil having a traction coefficient less than 0.021. A method for saving energy using a gear lubricant, comprising blending a multigrade gear lubricant by adding a base oil having a traction coefficient less than 0.021, and using the gear lubricant in an axle or differential. A process for making an energy saving automotive gear lubricant having a kinematic viscosity at 100° C. greater than 10 cSt. A gear lubricant comprising a FT derived base oil having a VI greater than 150 and a traction coefficient less than 0.015. A finished lubricant, comprising a FT derived base oil having a traction coefficient less than 0.015. A base oil having a traction coefficient less than 0.011 and a 50 wt % boiling point greater than 582° C.

Abstract: A lubricant, comprising a light base oil fraction having a wt % Noack volatility between 0 and 100 and additionally less than a Noack Volatility Factor (NVF), wherein the Noack Volatility Factor is defined by the equation; 900×(Kinematic Viscosity at 100° C.)?2.8?15, and optionally one or more additional additives. A process to make the light base oil fraction, comprising hydroisomerization dewaxing a waxy feed in a series of two or more reactors, and recovering the light base oil fraction having a low wt % Noack volatility. Also, a light base oil fraction having a wt % Noack volatility between 0 and 100 and additionally less than the NVF, made by the process of hydroisomerization dewaxing a waxy feed in a series of reactors.

Abstract: A lubricant base oil blend having a wt % Noack volatility less than 29, comprising a) a light base oil fraction having a kinematic viscosity at 100° C. between 1.5 and 3.6, and a wt % Noack volatility both between 0 and 100 and less than a Noack Volatility Factor, and b) a petroleum-derived base oil fraction. A process to make the lubricant base oil blend having a wt % Noack volatility less than 29. Also, a pour point depressed lubricant base oil blend having a Brookfield viscosity at ?40° C. of less than 18,000 cP, comprising the light base oil fraction, a petroleum-derived base oil fraction, and a pour point depressant.

Abstract: A heat transfer oil, comprising a base oil made from a waxy feed, wherein the base oil has a low pour point, low aromatics, and defined cycloparaffin composition. The heat transfer oil has high AIT and VI, and is an ISO viscosity grade. A process to prepare heat transfer oil, comprising: hydroisomerization of wax feed to make fraction(s) of base oil having low pour point, defined cycloparaffin composition, and high ratio of monocycloparaffins to multicycloparaffins; and blending the fractions with <0.2 wt % antifoam agent. A method to use heat transfer oil, comprising selecting heat transfer oil having high AIT and VI that is made with base oil having defined cycloparaffin composition, providing the heat transfer oil to mechanical system, and transferring heat from heat source to heat sink. Also, heat transfer oil comprising isomerized Fischer-Tropsch derived base oil with a low traction coefficient, and an antifoam agent.