The present invention relates to the field of fuel additives for fuel compositions and more particularly to a composition that can be used as a friction modifier, and its preparation process. More particularly, the present invention concerns a composition comprising at least one fatty acid amide of diethanolamine (DEA) and at least one fatty acid ester and/or amide of DEA oligomer, and it preparation process.

An improved organic and molybdenum friction modifier combination is disclosed, the combination resulting in a synergistic result of both initial friction reduction performance and a further retention and durability of continued friction reduction performance. These results will produce added benefit from, e.g., formulated passenger car motor oils targeting lower viscosity formulations to help improve fuel economy.

Compositions comprising an acrylamide polymer emulsion and a nonionic surfactant suitable for use as friction reducers for hydraulic fracturing are disclosed. The nonionic surfactants include aralkylated phenol ethoxylates, amine ethoxylates, amidoamine ethoxylates, linear or branched alcohol EO/PO alkoxylates, ethoxylated alcohols, alkylphenol ethoxylates, and EO-capped poly(oxypropylene) block copolymers. Improved hydraulic fracturing processes in which an acrylamide polymer emulsion is used as a friction reducer are also described. In these processes, the surfactant is included in the composition with the acrylamide polymer friction reducer, or it is introduced separately into the process. The performance of low-cost polyacrylamide friction reducers can be boosted with a small proportion of certain readily available nonionic surfactants. The inventive compositions are effective in high-salinity environments, and their performance can sometimes exceed that of more-expensive salt-tolerant friction reducers, thereby reducing fresh water demand and enabling greater utilization of produced water.

The present invention relates to a lubricating oil composition and a continuously-variable transmission filled with the lubricating oil composition. The present invention also relates to a friction control method for a continuously-variable transmission, the method using the lubricating oil composition. This lubricating oil composition is characterized by containing: (A) a base oil; (B) a diamine; (C) a glycolic acid amide; and (D) a phosphorous ester. With this lubricating oil composition, it is possible to provide different wear characteristics between different parts, so in a preferable embodiment of the present invention, the lubricating oil composition is suitably used as a lubricating oil for variable transmissions, in particular, metal-belt continuously-variable transmissions.

The present invention relates to a grease composition containing a base oil (A), a thickener (B), and an additive (C) composed of at least two selected from a sarcosine derivative (C1), an amine compound (C2), and an amide compound (C3), wherein the content of the component (C) is 0.1 to 10.0% by mass on a basis of the total amount of the grease composition.

A method for improving wear protection, while maintaining or improving deposit control and cleanliness, in an engine or other mechanical component lubricated with a 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 one or more lubricating oil additives including at least one borated detergent, as a minor component. The at least one borated detergent comprises a borated alkaline earth metal sulfonate. The borated alkaline earth metal sulfonate is present in an amount sufficient to provide a total boron concentration of about 300 parts per million or greater in the formulated oil. Wear protection is improved, and deposit control and cleanliness are maintained or improved, as compared to wear protection, deposit control and cleanliness achieved using a lubricating oil containing a borated additive other than the at least one borated alkaline earth metal sulfonate.

A method for improving wear protection, while maintaining or improving deposit control and cleanliness, in an engine or other mechanical component lubricated with a 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 one or more lubricating oil additives including at least one borated detergent, as a minor component. The at least one borated detergent comprises a borated alkaline earth metal sulfonate. The borated alkaline earth metal sulfonate is present in an amount sufficient to provide a total boron concentration of about 300 parts per million or greater in the formulated oil. Wear protection is improved, and deposit control and cleanliness are maintained or improved, as compared to wear protection, deposit control and cleanliness achieved using a lubricating oil containing a borated additive other than the at least one borated alkaline earth metal sulfonate.

The present application relates to a lubricant composition comprising: at least one base oil; from 0.05 to 1.5% by weight of an organomolybdenum compound; and from 0.005 to 1% by weight of TiO.sub.2 particles.

The invention provides a lubricating composition containing an oil of lubricating viscosity and an ashless ketone compound with at least one of a hydroxy group and an ether linkage attached to the carbon atom adjacent to the carbonyl carbon of the ketone, especially -hydroxyketone. The invention further relates to methods of lubricating an internal combustion engine by supplying the described lubricating composition to the internal combustion engine. The invention further relates to the use of the -hydroxyketone compound as a friction modifier and an antiwear agent.

Improved organic anti-wear additive compositions are disclosed containing certain citric acid esters, e.g., mixtures comprising citrate oligomers, and fatty acid alkanolamides. The combination exhibits excellent and synergistic anti-wear activity in lubricants. The compositions of the invention beneficially allow one to reduce amounts of zinc and phosphorus that are often used in lubricants, while boosting anti-wear performance and maintaining, and often enhancing, friction reduction properties.