Lubricant compositions for enhanced fuel economy

Details Lubricant compositions for enhanced fuel economy Lubricant compositions for enhanced fuel economy

C - Chemistry, Metallurgy

10

M

253/79

C10M 163/00 (2006.01)

Patent

CA 1337294

In accordance with the present invention, there are provided fuel economy promoting lubricating oil compositions which comprise an oil of lubricating viscosity as the major component and as the minor component (A) a mixture of (1) at least one calcium overbased sulfonate or phenate detergent inhibitor, and (2) at least one magnesium overbased sulfonate or phenate detergent inhibitor, and (B) a mixture of (1) at least one zinc di-(primary hydrocarbyl) dithiophosphate and (2) at least one zinc di-(secondary hydrocarbyl) dithiophosphate, (c) at least one ashless dispersant, and (d) a copper carboxylate antioxidant.

583370

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