Chevron Chemical Company LLC

Chevron Oronite Company LLC

Chevron Research & Technology Company

Chevron U.s.a. Inc.

Chevron Research Company

Chevron Oronite Technology B.v.

Chevron Oronite Sas

Richard E Cherpeck

Theresa Liang Gunawan

Amir Gamal Maria

Carrie Y Chan

Kenneth Dale Nelson

Ian G Elliott

Alexander B Boffa

Francois Simard

William M Kleiser

Majid R Ahmadi

Wim Van Dam

James D Kramer

Ruth Smocha

Gunther Hans Dieckmann

John Robert Miller

Man Hon Tsang

Richard Hogendoorn

James A McGeehan

Stephen D Stults

Jeffrey J Toman

Jack E Morris

Randy G Chevalier

Gaurav Bhalla

Andrew Michael Thomas

Ralph M Forde

Bernard J Braakman

Brian R Graskow

Matthew H Ansari

Matthew H Ansarie

Christophe P Le Deore

Carry Y Chan

Disclosed herein are improved lubricating compositions effective to prevent or reduce low speed pre-ignition in an engine, as well as to prevent or reduce corrosion of engine components. The lubricating compositions include a base oil combined with a calcium chelate complex, optionally in further combination with additional additives.

Composition and method for preventing or reducing low speed pre-ignition in direct injected spark-ignited engines

Disclosed is a lubricating engine oil composition for use in down-sized boosted engines comprising a lubricating oil base stock as a major component, and at least one silane-containing compound. Also disclosed is a method for preventing or reducing low speed pre-ignition in a direct injected, boosted, spark ignited internal combustion engine, and the use of at least one silane-containing compound in a lubricating engine oil composition for preventing or reducing low speed pre-ignition in a direct injected, boosted, spark ignited internal combustion engine.

Method for preventing or reducing low speed pre-ignition in direct injected spark-ignited engines with silane-containing lubricant

Disclosed is a method for preventing or reducing low speed pre-ignition in an engine lubricated with a formulated oil. The formulated oil has a composition comprising at least one oil soluble or oil dispersible cobalt-containing compound.

Method for preventing or reducing low speed pre-ignition in direct injected spark-ignited engines with cobalt-containing lubricant

Friction modifier and compositions containing the friction modifier as a fuel additive are provided. Methods for improving fuel efficiency using these compositions are also provided.

Amino alkanediols and carboxylate salts as additives for improving fuel efficiency

Disclosed is a lubricating engine oil composition for a direct injected, boosted, spark ignited internal combustion engine comprising from about 25 to about 3000 ppm of metal from at least one manganese-containing compound, based on the total weight of the lubricating oil. Also disclosed is a method for preventing or reducing low speed pre-ignition in an engine lubricated with said lubricating engine oil composition.

Method for preventing or reducing low speed pre-ignition in direct injected spark-ignited engines with manganesemanganese-containing lubricant

A lubricating oil composition having a sulfur content of up to about 0.4 wt. % and a sulfated ash content of up to about 0.5 wt. % as determined by ASTM D874 is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) at least one oil-soluble or dispersed oil-stable boron-containing compound having greater than 400 ppm of boron, based upon the total mass of the composition; and (c) at least one oil-soluble or dispersed oil-stable molybdenum-containing compound having at least about 1100 ppm of molybdenum, based upon the total mass of the composition; wherein the lubricating oil composition has a ratio of sulfur to molybdenum of less than or equal to about 4:1.

Lubricating oil compositons

A lubricating oil composition having a sulfur content of up to about 0.4 wt. % and a sulfated ash content of up to about 0.5 wt. % as determined by ASTM D874 is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) at least one oil-soluble or dispersed oil-stable boron-containing compound having no more than about 400 ppm of boron; and (c) at least one oil-soluble or dispersed oil-stable molybdenum-containing compound having at least about 1100 ppm of molybdenum, based upon the total mass of the composition; wherein the lubricating oil composition has a ratio of sulfur to molybdenum of less than or equal to about 4:1.

Lubricating oil composition

A lubricating oil composition having a sulfur content of up to about 0.4 wt. % and a sulfated ash content of up to about 0.5 wt. % as determined by ASTM D874 is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) at least one oil-soluble or dispersed oil-stable boron-containing compound having no more than about 600 ppm of boron, based upon the total mass of the composition; and (c) at least one oil-soluble or dispersed oil-stable molybdenum-containing compound having no more than about 800 ppm of molybdenum, based upon the total mass of the composition; wherein the lubricating oil composition has a ratio of sulfur to molybdenum of about 5:1 to about 500:1.

Lubricating oil compositions

Disclosed are polyisobutenyl alcohols and substituted polyisobuentyl alcohols of the formula: 

Polyisobutenyl alcohols and fuel compositions

A process is described for preparing alkylene oxide-adducted hydrocarbyl amides having less than 2 wt % of amine by-products by

Alkylene oxide-adducted hydrocarbyl amides

Disclosed is a method for preparing a hydroxyl functionalized polymer from a Lewis acid promoted carbonyl-ene reaction comprising: selecting a vinylidene terminated polyolefin having a number average molecular weight from about 950 to about 5000 and having a terminal vinylidene content greater than 50 mole percent; selecting a carbonyl enophile; selecting a Lewis acid; and contacting the components in step a), b) and c) under reactive conditions to form the hydroxyl functionalized polymer.

Carbonyl-ene functionalized polyolefins

Disclosed is a lubricating oil composition containing an oil of lubricating viscosity and a N,N,N',N&#x2032;-tetraalkyl-naphthalene-1,8-diamine and at least one additive selected from antioxidants, dispersants, and detergents which together provide superior oxidation inhibition and are suitable lubricants for automotive and truck crankcase lubricants; as well as transmission lubricants, gear lubricants, hydraulic fluids, compressor oils, diesel and marine lubricants.

Lubricating oil compositions containing a tetraalkyl-napthalene-1,8 diamine antioxidant

Benzo[b]perhydroheterocyclic arylamine compounds have shown to be particularly useful as stabilizers. The compounds may serve as antioxidants, antiozoants, heat stabilizers and ultraviolet light stabilizers and such compounds are oil soluble, thus particularly suited for use as an antioxidant in a lubricating oil composition.

Benzo[b]perhydroheterocyclic arylamines and lubricating oil compositions

Process for preparing alkylene oxide-adducted hydrocarbyl amides

A fuel composition comprising a major amount of hydrocarbons boiling in the gasoline or diesel range and an alkylene oxide-adducted hydrocarbyl amide reaction product having from about 3 to 50 moles of alkylene oxide per mole of hydrocarbyl amide, wherein the reaction product is prepared by (a) first reacting a fatty acid or fatty acid lower alkyl ester with ammonia or a mono- or di-hydroxy hydrocarbyl amine and (b) subsequently reacting the resulting intermediate with an alkylene oxide to provide a reaction product comprising the alkylene oxide-adducted hydrocarbyl amide, a mixture of mono- and di-ester products, and amine by-products, wherein the amount of amine by-products in the reaction product is less than 7 wt %, based on the total weight of the alkylene oxide-adducted hydrocarbyl amide reaction product, and the amide:ester ratio in the reaction product is in the range of about 0.1:1 to 1.1:1.

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Cotati, CA, United States of America

Richard E Cherpeck