LUBRICATING OIL COMPOSITION FOR SHOCK ABSORBER AND FRICTION REDUCTION METHOD FOR SHOCK ABSORBER

摘要

Provided is a lubricating oil composition for a shock absorber excellent in thermal stability and capable of reducing the friction factor for rubber. The lubricating oil composition for a shock absorber contains (A) a base oil composed of a mineral oil and/or a synthetic oil, (B) a zinc dithiophosphate represented by the following general formula (I), (C) a fatty acid amide and (D) a polyalcohol ester.;;In the formula, R1 to R4 each independently represent at least one selected from a linear, branched or cyclic alkyl group having from 6 to 20 carbon atoms and a linear, branched or cyclic alkenyl group having from 6 to 20 carbon atoms.

主权项

1. A lubricating oil composition, comprising (A) a base oil comprising a mineral oil and/or a synthetic oil, (B) a zinc dithiophosphate represented by formula (I), (C) a fatty acid amide and (D) a polyalcohol ester: wherein R1 to R4 each independently represent at least one selected from a linear, branched or cyclic alkyl group having from 6 to 20 carbon atoms and a linear, branched or cyclic alkenyl group having from 6 to 20 carbon atoms in the general formula (I).