A method for improving wear control and sludge control, while maintaining or improving fuel efficiency, of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component, and at least one lubricating oil additive, as a minor component. The at least one lubricating oil additive includes a zirconium-containing compound. The zirconium-containing compound is present in an amount from about 0.1 to about 1200 parts per million (ppm). The zirconium-containing compound is soluble in the lubricating oil base stock. The lubricating oil is useful as a passenger vehicle engine oil (PVEO), a commercial vehicle engine oil (CVEO), and other lubricating oils (hydraulic, gear, transmission, etc.).

A grease composition comprises a thickener, a base oil, and a friction modifier. The friction modifier comprises: at least one selected from the group consisting of fatty acids, fatty acid metal salts, phosphate esters, thiophosphate esters, and zinc dithiophosphates; and a polyhydric alcohol ester.

This invention relates to a functional fluid, comprising (A) from 70 to 90, preferably 75-87 wt.-% of alkoxy glycol according to formula (I) CH.sub.3O(CH.sub.2CH.sub.2O).sub.nH wherein n is a number from 2 to 5, with the proviso that in at least 30 wt.-% of all compounds according to formula (I) n is 3, and that 15 to 65 wt.-% of all compounds according to formula (I) have n=4 or 5, and (B) less than 1.0 wt.-% of alkoxy glycol according to formula (II) R.sub.1O(CH.sub.2CH.sub.2O).sub.mH wherein R.sub.1 is a C.sub.2 to C.sub.8 alkyl residue, m is a number from 2 to 6, (C) from 8 to 25, preferably 12-23 wt.-% of at least one compound according to formula (III) HO(CH.sub.2CH.sub.2O).sub.kH wherein k is a number of 2 or higher, with the proviso that in at least 80 wt.-% of all compounds according to formula (III) k is 2 or 3, (D) at least one additive, selected from the group consisting of corrosion inhibitors, alkalinity agents, aging protection agents, defoamers and lubricants, the lubricants being selected from the group consisting of propylene oxide containing alkylene oxide polymers that are optionally substituted with a C.sub.1 to C.sub.4 alkyl group, triglycerides, castor oil, ricinoleic acid, and ethoxylates of castor oil or ricinoleic acid, and mixtures thereof, the fluid comprising at most 3 wt.-% of an ester between boric acid and a glycol or alkylpolyglycol compound.

This invention relates to a functional fluid, comprising (A) from 70 to 90, preferably 75-87 wt.-% of alkoxy glycol according to formula (I) CH.sub.3O(CH.sub.2CH.sub.2O).sub.nH wherein n is a number from 2 to 5, with the proviso that in at least 30 wt.-% of all compounds according to formula (I) n is 3, and that 15 to 65 wt.-% of all compounds according to formula (I) have n=4 or 5, and (B) less than 1.0 wt.-% of alkoxy glycol according to formula (II) R.sub.1O(CH.sub.2CH.sub.2O).sub.mH wherein R.sub.1 is a C.sub.2 to C.sub.8 alkyl residue, m is a number from 2 to 6, (C) from 8 to 25, preferably 12-23 wt.-% of at least one compound according to formula (III) HO(CH.sub.2CH.sub.2O).sub.kH wherein k is a number of 2 or higher, with the proviso that in at least 80 wt.-% of all compounds according to formula (III) k is 2 or 3, (D) at least one additive, selected from the group consisting of corrosion inhibitors, alkalinity agents, aging protection agents, defoamers and lubricants, the lubricants being selected from the group consisting of propylene oxide containing alkylene oxide polymers that are optionally substituted with a C.sub.1 to C.sub.4 alkyl group, triglycerides, castor oil, ricinoleic acid, and ethoxylates of castor oil or ricinoleic acid, and mixtures thereof, the fluid comprising at most 3 wt.-% of an ester between boric acid and a glycol or alkylpolyglycol compound.

This invention relates to a functional fluid, comprising: (A) from 50 to 85 wt.-% of alkoxy glycol according to formula (I): CH.sub.3O(CH.sub.2CH.sub.2O).sub.nH, wherein n is a number from 2 to 5, with the proviso that in at least 30 wt.-% of all compounds according to formula (I), n is 3, and (B) from 1 to 20 wt.-% of alkoxy glycol according to formula (II): R.sub.1O(CH.sub.2CH.sub.2O).sub.mH, wherein R.sub.1 is a C2 to C8 alkyl residue, m is a number from 2 to 6, with the proviso that in at least 65 wt.-% of all compounds according to formula (II), m is 3, and (C) from 6 to 35 wt.-% of at least one compound according to formula (III): HO(CH.sub.2CH.sub.2O).sub.kH, wherein k is a number of 2 or higher, with the proviso that in at least 80 wt.-% of all compounds according to formula (III), k is 2 or 3, (D) at least one additive.

This invention relates to a functional fluid, comprising: (A) from 50 to 85 wt.-% of alkoxy glycol according to formula (I): CH.sub.3O(CH.sub.2CH.sub.2O).sub.nH, wherein n is a number from 2 to 5, with the proviso that in at least 30 wt.-% of all compounds according to formula (I), n is 3, and (B) from 1 to 20 wt.-% of alkoxy glycol according to formula (II): R.sub.1O(CH.sub.2CH.sub.2O).sub.mH, wherein R.sub.1 is a C2 to C8 alkyl residue, m is a number from 2 to 6, with the proviso that in at least 65 wt.-% of all compounds according to formula (II), m is 3, and (C) from 6 to 35 wt.-% of at least one compound according to formula (III): HO(CH.sub.2CH.sub.2O).sub.kH, wherein k is a number of 2 or higher, with the proviso that in at least 80 wt.-% of all compounds according to formula (III), k is 2 or 3, (D) at least one additive.

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.

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.

The present invention relates to conveyor lubricant compositions including an emulsion of a lipophilic compound and also including an emulsifier and/or an anionic surfactant. The present invention also relates to methods employing such lubricant compositions. In an embodiment, the method includes applying the present lubricant composition to a conveyor with a non-energized nozzle.

The present invention relates to conveyor lubricant compositions including an emulsion of a lipophilic compound and also including an emulsifier and/or an anionic surfactant. The present invention also relates to methods employing such lubricant compositions. In an embodiment, the method includes applying the present lubricant composition to a conveyor with a non-energized nozzle.