申请人:ETHYL PETROLEUM ADDITIVES, INC.
公开号:EP0335702A2
公开(公告)日:1989-10-04
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.
在发动机曲轴箱中使用配方机油可减少发动机磨损和油泥,该机油含有少量以下物质的组合:(i) 总碱基数至少为 100 的碱土金属磺酸盐;(ii) 二氢羰基二硫代磷酸锌;(iii) 硫化羧酸酯;(iv) 硫化脂肪酸酰胺、酯或氧烷基化胺的酯酰胺或它们的混合物。