| abstract |
(57) [Summary] [Structure] Based on the total weight of the composition, based on the total weight of the composition, the metal salt of dithioxanthogenic acid (A) is 50 to 4000 ppm, and (B) 0.01-10% by weight of a fatty acid ester and / or 0.01-5% by weight of an organic amide compound, and (a) Ca sulfonate as a component (C). Or Mg sulfonate, Ca phenate, Mg phenate, Ca salicylate or Mg salicylate 0.1-10% by weight, (b) benzylamine or its boron derivative or alkenylsuccinimide or its boron derivative 0.5-15% by weight and ( C) A lubricating oil composition containing 0.1 to 7% by weight of zinc dithiophosphate and zinc dithiocarbamate. [Effect] A lubricating oil composition having both excellent wear resistance and friction characteristics, and further, having not only excellent wear resistance and friction characteristics, but also other performance required as a lubricating oil for internal combustion engines, particularly lubrication for internal combustion engines. A lubricating oil composition suitable as an oil can be provided. |