| abstract |
Disclose a kind of method improving the copper corrosion performance of lubricating oil composition, described lubricating oil composition contains the lubricant viscosity base oil of (a) primary amount, and (b) one or more contain the dispersion agent of one or more basic nitrogen atom.The method relates to the copper corrosion performance improving agent that one or more that add significant quantity to lubricating oil composition comprise one or more oil-soluble titanium. |