| 摘要 |
A lubricant composition comprises a major amount of a base oil and a minor amount of an additive composition comprising (i) a triazole compound substituted with an aryl moiety; (ii) at least one nitrogen containing compound chosen from an alkylated phenothiazine and a compound represented by the formula (I): ```R<0> - N - (R<1>) (R<2>) (I) wherein R<0>, R<1> and R<2> are each independently selected from an aryl moiety comprising 6 to 30 carbon atoms, hydrogen, halogen, hydroxy, hydrocarbyl, substituted hydrocarbyl, amino, amido, phosphoro, and sulfono, with the proviso that at least one of R<0>, R<1> and R<2> are chosen to be an aryl moiety comprising from about 6 to about 30 carbon atoms; and (iii) a metal detergent with a soap/TBN ratio ranging from about 0.05 to about 1.5. The composition has a delayed onset of viscosity increase due to oxidation. |
