文摘
Effect of aromatics, olefins, T50 and T90 on GDI vehicle emissions was investigated. Aromatics and olefins had little impact on fuel consumption and CO2 emissions. Reducing the aromatic content and T90 significantly decreased PM and PN emissions. Changing the olefin content and T50 had a minor impact on particle emissions. Thresholds of aromatics and T90 should be tightened in future gasoline regulations.