| abstract |
A lubricating oil composition for reducing engine wear is provided. The lubricating oil composition of the present invention comprises (a) an oil having a major amount of lubricating viscosity, and (b) an oil-soluble tetrafunctional hydrolyzable silane compound of the general formula Si-X 4 or its hydrolysis product. Each X is independently a hydroxyl-containing group, a hydrocarbonoxy-containing group, an acyloxy-containing group, an amino-containing group, a monoalkylamino-containing group, or a dialkylamino-containing group, and the lubricating oil composition has Does not contain zinc dialkyldithiophosphate. [Selection figure] None |