標題: ASTM D 5500-1998 對汽車火花點火發動機無鉛燃料評定進料閥沉... [打印本頁] 作者: 兌水 時間: 2009-10-17 10:47 標題: ASTM D 5500-1998 對汽車火花點火發動機無鉛燃料評定進料閥沉... D5500-98(2003)e1 Standard Test Method for Vehicle Evaluation of Unleaded Automotive Spark-Ignition Engine Fuel for Intake Valve Deposit Formation