| 摘要 |
A lubricating oil composition for internal combustion is provided to have abrasion resistance, thermal stability and dispersive capacity and to restrain the deposits of internal combustion effectively. A lubricating oil composition for internal combustion contains 60.0~99.0 weight% of base oil, 0.01~0.5 weight% of minute metal particles having a mean particle size of 1~1000 nm, 0.1~6 weight% of detergent dispersant, 0.1~20 weight% of ashless dispersing agent, 0.01~3 weight% of anticorrosion agent, 0.001~0.3 weight% of antifoaming agent, 0.01~5 weight% of antiwear agent, 0.01~5.5 weight% of antioxidant, 0.1~20 weight% of viscosity index improver and 0.01~1.5 weight% of pour point depressant. The minute metal particles are selected one or more selected from a group consisting of aluminum oxide, titanium oxide, zirconium oxide, zinc oxide and iron oxide. |
