A lubricating oil composition

C - Chemistry – Metallurgy – 10 – M

Patent

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Details

C10M 137/10 (2006.01) C10M 129/54 (2006.01) C10M 141/10 (2006.01) F01M 1/00 (2006.01)

Patent

CA 2678295

A lubricating oil composition comprising (A) an oil of lubricating viscosity in a major amount; and, (B) as an additive component in a minor amount, an oil-soluble zinc salt of a dithiophosphoric acid, the dithiophosphoric acid being the reaction product of phosphorus pentasulphide with a mixture of at least one first alcohol of the formula ROH where R is an aliphatic hydrocarbyl group having at least four carbon atoms or is an alkaryl group, and at least one second alcohol which is an ester of a polyhydric alcohol.

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