Abstract: Provided is a low sulfated ash engine oil lubricant composition containing organic friction modifiers with improved fuel economy and corrosion resistance. The lubricant composition includes one or more metal free corrosion inhibitors having an organic acid group and/or one or more organo metallic naphthalene molecules having a ASTM D2896 total base number less than 3 mg KOH/g. The resulting lubricant composition improves ASTM D6557 corrosion protection for low sulfated ash engine oils containing organic friction modifiers, while maintaining exceptional fuel economy performance.

Abstract: Provided is a method for determining air release performance of a lubricating oil. The method involves determining air release time of the lubricating oil in accordance with ASTM D3427 at a designated temperature; determining surface tension of the lubricating oil at the temperature used in ASTM D3427; determining kinematic viscosity of the lubricating oil in accordance with ASTM D445 at the temperature used in ASTM 3427; and utilizing the surface tension, ASTM D3427 air release time, and ASTM D445 kinematic viscosity to determine air release performance of the lubricating oil. Surface tension is correlated with ASTM D3427 air release time at an ASTM D445 kinematic viscosity of at least about 30 cSt. The method has higher measurement sensitivity and reproducibility/repeatability than ASTM D3427.

Abstract: This disclosure relates to a method for improving air release in a lubricating oil. The method involves formulating a composition having at least one lubricating oil base stock as a major component, and one or more lubricating oil additives, as a minor component. The one or more lubricating oil additives include at least one polyalkylene glycol. The at least one polyalkylene glycol is soluble in the at least one lubricating oil base stock. The weight ratio of the at least one polyalkylene glycol to the at least one lubricating oil base stock is from about 1:99 to about 7:93. During operation of a lubricating system containing the lubricating oil, release of entrained air in the lubricating oil is improved, as determined by ASTM D-3427-15, as compared to release of entrained air achieved using a lubricating oil containing other than the at least one polyalkylene glycol. This disclosure also relates to lubricating oils having at least one oil soluble polyalkylene glycol (OSP).

Abstract: This disclosure relates to a method for improving air release and water separation in a lubricating oil. The method involves formulating a composition comprising at least one lubricating oil base stock as a major component, and one or more lubricating oil additives, as a minor component. The one or more lubricating oil additives include a mixture of antifoam agents. The mixture of antifoam agents includes at least one polysiloxane and at least one acrylate polymer. During operation of a lubricating system containing the lubricating oil, release of entrained air in the lubricating oil is improved, as determined by ASTM D-3427-15, and water separation from the lubricating oil is improved, as determined by ASTM D-1401-18b, as compared to release of entrained air and water separation achieved using a lubricating oil containing other than the mixture of antifoam agents.

Abstract: This disclosure provides a method for improving wear control, while maintaining or improving energy efficiency, in a mechanical component having sliding or rolling between contacting surfaces. The method involves using a lubricant composition in the mechanical component having sliding or rolling between contacting surfaces. The lubricant composition has a base stock blend as a major component, and at least one lubricant additive, as a minor component. The base stock blend has at least one first base stock having a viscosity from 1 to 50 cSt at 40° C. and at least one second base stock having viscosity from 100 to 2000 cSt at 40° C. The first base stock is present in an amount greater than 50 to 95 wt % of the base stock blend, and the second base stock is present in an amount from 5 to less than 50 wt % of the base stock blend. The second base stock is miscible with the first base stock.

Abstract: Provided is a non-Newtonian engine oil lubricant composition with improved fuel efficiency and engine wear protection. The lubricant composition includes a major amount of a base oil including a Group II base stock and an optional Group V base stock, from 0.1 to 9.0 wt. % of at least one viscosity modifier and from 0.1 to 1.2 wt. % of at least one friction modifier. The non-Newtonian engine oil lubricant composition has a kinematic viscosity at 100 deg. C. of less than or equal to 10 cSt and an HTHS (ASTM D4683) of less than or equal to 2.2 cP at 150° C. Also provided are methods of using the lubricant composition in internal combustion engines and methods of making the lubricant composition.

Abstract: The present disclosure relates generally to lubricating compositions and methods of making and using the same. Specifically, the present disclosure relates to lubricating compositions and method of making and using the same for modifying friction at a metal-elastomer contact, and therefore improving at least one of elastomer lifetime, reducing elastomer wear, reducing metal wear, reducing energy consumption or a combination thereof. More specifically, one aspect of the present disclosure relates to lubricating compositions including at least two base oils with a viscosity difference between the first and second base oils; another aspect of the present disclosure relates to lubricating compositions comprising an additive that can modify friction at a metal-elastomer contact.

Abstract: The present disclosure provides a lubricating composition that includes at least one lubricating base oil, an effective amount of at least one overbased detergent; and an effective amount of at least one thermally stable zinc dialkyl dithiophosphate. The disclosure further provides methods of making and using the same.

Abstract: Provided is a non-Newtonian engine oil lubricant composition with improved fuel efficiency and engine wear protection. The lubricant composition includes a major amount of a base oil including a Group II base stock and an optional Group V base stock, from 0.1 to 9.0 wt. % of at least one viscosity modifier and from 0.1 to 1.2 wt. % of at least one friction modifier. The non-Newtonian engine oil lubricant composition has a kinematic viscosity at 100 deg. C. of less than or equal to 10 cSt and an HTHS (ASTM D4683) of less than or equal to 2.2 cP at 150° C. Also provided are methods of using the lubricant composition in internal combustion engines and methods of making the lubricant composition.

Abstract: This disclosure relates to a lubricating oil for an electric vehicle powertrain and powertrain components. The lubricating oil has a composition including a lubricating base oil as a major component, an additive package, as a minor component, and an effective amount of one or more conductivity agents, as a minor component. The lubricating oil has an electrical conductivity from about 10 pS/m to about 20,000 pS/m, a dielectric constant of about 1.6 to about 3.6, with a ratio of electrical conductivity-to-dielectric constant from about 5 to about 10,000. This disclosure also relates to methods for producing a lubricating oil for an electric vehicle powertrain and powertrain components.

Abstract: This disclosure relates to a method for minimizing the electrical drainage of charged electrical powertrain components, a method for controlling electrical conductivity over a lifetime of a lubricating oil in an electric vehicle powertrain lubricated with the lubricating oil, and a method for obtaining a desired electrical conductivity-to-dielectric constant ratio of a lubricating oil for an electric vehicle powertrain and powertrain components. The methods relate to controlling at least one of oxidation, deposit formation and corrosion over the service lifetime of the oil. The lubricating oil has a composition including a lubricating base oil as a major component, an additive package, as a minor component, and an effective amount of one or more conductivity agents, as a minor component. The lubricating oil has an electrical conductivity from 10 pS/m to 20,000 pS/m, a dielectric constant of 1.6 to 3.6, with a ratio of electrical conductivity-to-dielectric constant from 5 to 10,000.

Abstract: This disclosure relates to a method for preventing or minimizing electrostatic discharge and dielectric breakdown in an electric vehicle powertrain by controlling electrical conductivity over a lifetime of a lubricating oil in an electric vehicle powertrain lubricated with the lubricating oil. The lubricating oil has a composition including a lubricating oil base stock as a major component, and an additive package as a minor component comprising one or more lubricating oil additives, and an effective amount of one or more conductivity agents, as a minor component. The lubricating oil has an electrical conductivity from 10 pS/m to 20,000 pS/m, a dielectric constant of 1.6 to 3.6, with a ratio of electrical conductivity-to-dielectric constant from 1,000 to 10,000.

Abstract: The present invention relates to methods of lubricating a hydraulic motor by using a lubricating composition that contains a friction modifier selected from the group consisting of a fatty phosphite, a fatty imidazoline and combinations thereof and supplies improved motor efficiency performance. The invention further provides the lubricating compositions used therein.

Abstract: A functional fluid composition containing a fluid base stock (e.g., a phosphate ester fluid base stock) as a major component, and an erosion inhibitor mixture as a minor component. The erosion inhibitor mixture contains at least a first erosion inhibitor (e.g., a perhalometallate or perhalometalloidate salt) and a second erosion inhibitor (e.g., an alkali metal salt of perfluoroalkyl sulfonic acid). Erosion inhibition of the functional fluid composition is improved as compared to erosion inhibition achieved using singly the first erosion inhibitor or the second erosion inhibitor, as measured by one or more of ASTM D2624, ASTM D974, ASTM D130 and ASTM D6304. A method for operating and lubricating a hydraulic system by utilizing as a hydraulic fluid, the functional fluid composition. A method for identifying erosion inhibition effectiveness of the functional fluid. The functional fluids are useful as aircraft hydraulic fluids.

Abstract: A method for improving varnish control in a mechanical device requiring hydraulic fluids, turbine oils, industrial fluids, circulating oils, or combinations thereof. The method involves supplying the mechanical device with a lubricating composition including a Group III lubricating oil base stock. The Group III lubricating oil base stock has a viscosity from 3.8 to 8.5 mm2/s at 100° C., a viscosity index greater than 120, a sulfur content less than 0.0003 weight percent, and an aromatic hydrocarbon content less than 0.2 weight percent, based on the total weight of the Group III lubricating oil base stock. Varnish reduction properties are improved as compared to varnish reduction properties achieved using a lubricating composition containing a different Group III lubricating oil base stock. The disclosure also provides lubricating compositions used in the method.

Abstract: The present invention relates to methods of lubricating a hydraulic motor by using a lubricating composition that contains a friction modifier selected from the group consisting of a fatty phosphite, a fatty imidazoline and combinations thereof and supplies improved motor efficiency performance. The invention further provides the lubricating compositions used therein.

Abstract: A lubricant composition including a first fluid having a viscosity from 150 cSt to 2000 cSt at 40° C. (ASTM D-445) and a traction coefficient from 0.01 to 0.025 (MTM TC Method), and a second fluid having a viscosity from 1 cSt to 30 cSt at 40° C. (ASTM D-445) and a traction coefficient from 0.008 to 0.015 (MTM TC Method). The second fluid is miscible with the first fluid. The traction coefficient of the lubricant composition is lower than the traction coefficient of the first fluid and the traction coefficient of second fluid, as determined by the MTM TC Method. Provided is also a method of reducing the traction coefficient of a lubricant composition.

Abstract: In one embodiment, a lubricating oil with favorable shear stability is disclosed. The lubricating oil comprising a major amount of base stock selected from the group consisting of Group II, Group III, Group IV, Group V, and any combination thereof, a viscosity index improver comprising a polymethacrylate with a permanent shear stability index of less than 45 defined by ASTM 5621 with 10 percent polymer in a Group I mineral oil, an antioxidant additive and a corrosion additive. In a second embodiment a method of improving shear stability is disclosed. In a third embodiment, a method of blending an oil to provide improved shear stability and favorable viscosity index is disclosed.

Abstract: In one embodiment, a lubricating oil with favorable deposit control is disclosed. The lubricating oil comprises, a major amount of base stock selected from the group consisting of Group II, Group III, GTL and any combination thereof, a mannich based dispersant comprising at least 0.1 and less than 2.0 weight percent of the lubricating oil, a demulsifier comprising apolyoxypropylene-polyoxyethylene block copolymer in tricresyl phosphate (TCP) demulsifier and apolyether glycol demulsifier, the demulsifiers comprising at least 0.002 to less than 2.0 weight percent of the lubricating oil, wherein the lubricating oil has a deposit control value less than 60 mg/kg using 504 hour 120° C. Dry TOST sludge test and an ASTM D-1401 emulsion characteristic of less than 60 minutes at 54° C.

Abstract: A synergistic demulsifier composition for the improvement of demulsification properties and method of making said composition is disclosed along with a lubricant composition containing same. The demulsifier composition consists of effective amounts of one or more demulsifier additives and one or more dispersants. The demulsifier additives consist of a first copolymer of propylene oxide and ethylene oxide and a second copolymer of propylene oxide and ethylene oxide. The dispersant can be an untreated polyalkene succinimide type dispersant, preferably an untreated polyisobutylene succinimide type dispersant.