Lubricating oil composition

Details Lubricating oil composition Lubricating oil composition

1989-10-02

1990-10-02

Chaudhuri, Olik

Compositions

Electrolytes for electrical devices

252 327E, 252 466, 252 47, 252 475, C10M10572

Patent

active

049605283

ABSTRACT:
Engine wear and sludge are reduced by using in the engine crankcase a formulated motor oil containing a small amount of the combination of (i) an overbased alkaline earth metal sulfonate having a total base number of at least 100, (ii) a zinc dihydrocarbyl dithiophosphate, (iii) a sulfurized carboxylic acid ester, and (iv) a sulfurized fatty acid amide, ester or ester-amide of an oxyalkylated amine or mixtures thereof.

REFERENCES:
patent: 3732167 (1973-05-01), Foucher
patent: 3899432 (1975-08-01), Rothert
patent: 4375418 (1983-03-01), Zoleski

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