| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lubricating oil composition including an aniline compound which is useful as an ashless TBN booster. <P>SOLUTION: The lubricating oil composition includes major amounts of oil of lubricating viscosity and minor amounts of one or more compounds of formula (I), wherein R<SP POS="POST">1</SP>, R<SP POS="POST">2</SP>, R<SP POS="POST">3</SP>, R<SP POS="POST">4</SP>, and R<SP POS="POST">5</SP>each independently represents alkyl or substituted alkyl having no aryl substituent. <P>COPYRIGHT: (C)2013,JPO&INPIT |
