Lubricating oil composition

Details Lubricating oil composition Lubricating oil composition

1990-08-03

1992-11-17

McAvoy, Ellen

Compositions

Electrolytes for electrical devices

252 18, 252 33, 252 475, 252 486, C10M13502, C10M13506

Patent

active

051641020

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: 4201684 (1980-05-01), Malec
patent: 4960530 (1990-10-01), Everett et al.

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