Chevron Japan Limited

Chevron Oronite Company LLC

Taiki Hattori

Koichi Kubo

William R Ruhe, Jr

Yoshitaka Takeuchi

Chihiro Sone

Jr William Raymond Ruhe

This disclosure describes a lubricant additive. The additive is a friction modifier that includes a molybdenum containing compound and a tertiary amine-containing composition having the following structure: wherein each Rand Ris independently a linear or branched-chain monovalent hydrocarbyl group having one to about twenty carbon atoms, wherein each R, R, and Ris independently a hydrogen, a linear or branched-chain monovalent hydrocarbyl group having one to about twenty carbon atoms, each m is independently from 0 and 4, each p is independently from 0 and 4, for each cyclic moiety m+p is from 2 and 4, and each n is independently from 1 and 6.

Friction modifier system

Provided is a lubricating oil composition having a HTHS viscosity at 150&#xb0; C. in a range of about 1.7 to about 3.2 mPa s and a low temperature cold cranking viscosity of less than 7,000 mPa s at &#x2212;20&#xb0; C., comprising: (a) a major amount of an oil of lubricating viscosity having a kinematic viscosity at 100&#xb0; C. of from 3.5 mm/s to 20 mm/s and a viscosity index of greater than 120 with a sulfur content of less than 0.03 wt. %, are classified into the API group III, IV, or V base stock category, and have an aromatics content (C) of less than 5%; (b) an organomolybdenum compound; (c) a dispersed hydrated alkali metal borate compound; (e) one or more dispersants; (f) one or more calcium-based metal detergents; and (g) optionally, one or more magnesium-based metal detergents. Also provided is a method for improving wear, high temperature detergency, and thermal stability in an engine comprising operating said engine with said lubricating oil composition.

Low viscosity lubricating oil compositions

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Kakegawa, Japan

Taiki Hattori