<p>A lubricating composition with improved storage stability comprising a major amount of an oil of lubricating viscosity, at least one alkali metal borate, at least one polysulfide mixture having at least 40% dihydrocarbyl tetrasulfide or higher sulfides, and at least one non-acidic phosphorus compound comprised of a trihydrocarbyl phosphate and a dihydrocarbyl dithiophosphate derivative is disclosed. In addition to improved storage stability, the composition has improved wear performance when the ratio of polysulfides is controlled.</p>
申请公布号
WO2006118689(A2)
申请公布日期
2006.11.09
申请号
WO2006US10580
申请日期
2006.03.24
申请人
CHEVRON U.S.A. INC.;ZAKARIAN, JOHN, A.;HAIRE, MICHAEL, J.