| abstract |
(57) [Abstract] [Problem] Especially when used as a tractor fluid, To provide a functional fluid having a wide range of different functional properties. A functional fluid composition having improved low temperature properties and wear resistance, the composition comprising the following A and B: A. a major amount of oil of lubricating viscosity; and B. a minor amount. The additive package of, wherein the package contains the following (1), (2) and (3): (1) a complex of an alkali metal salt or an alkaline earth metal salt, wherein the complex is , (A) borated metal salt complexes; and (b) selected from the group consisting of a borated metal salt complex and a mixture of non-borated metal salt complexes; (2) an EP / antiwear agent in the form of a zinc salt, said EP / antiwear The agent is selected from the group consisting of (a) zinc salt of dialkyl phosphorodithioic acid; and (b) mixture of zinc salt of dialkyl phosphorodithioic acid and zinc salt of carboxylic acid; and (3) boric acid Chlorinated epoxide. |