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SAE Technical Paper Series
Real time differentiated hydrocarbon tailpipe emission monitoring on a lambda one controlled vehicle, driven in the NEFZ ("Neuer Europäischer Fahrzyklus") driving cycle on the chassis dynamometer, showed dramatic variations of the concentrations of butadiene and benzene when operated with gasolines of different octane rating. Butadiene as well as benzene emissions were enhanced in 91 octane (RON) fuels compared to 95 and 98 octane fuels, although the aromatics content of RON 91 fuel isdoi:10.4271/2002-01-1643 fatcat:trp53kjakvek5k27oysoaj2opy