ASTM D5500进液阀门沉积形成不含铅自动火花点火引擎燃料车辆评价标准试验方法
日期:2012-02-07 18:00
utomotive spark-ignition engine fuel's propensity to form intake valve deposits. This testing concluded that if an automotive spark-ignition engine fuel could keep intake valve deposits at or below a certain average weight per valve at the end of mileage accumulation, then that automotive spark-ignition engine fuel could be used in the BMW vehicle-engine combination for a specified period without intake valve deposits causing driveability degradation. Minimizing intake valve deposits may be nece
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