| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a lubricating oil composition having excellent fuel-saving performance and low temperature fluidity as well as excellent metal fatigue preventing property. <P>SOLUTION: The lubricating oil composition contains a mineral base oil having a urea adduct value of not more than 4 mass% and having a viscosity index of not less than 100, an ester based oil, and a viscosity index improving agent. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
