本帖最后由 kingsnake 于 2010-4-1 10:18 编辑 _$ V/ g3 f" X1 D/ K$ V 6 S" P! z7 M* W& U1 fMON Motor Octane Number. 5 j+ O$ j( k2 L- J2 f2 {: pMeasure under more severe condition than RON. e.g. higher revolution, controled temperature etc. Number usually 8-9 units lower than RON.