Line Plot from Scientific Research

Tailpipe emissions of diesel, HyFiT-20% and HyFiT-40%: NO x. Results are shown for additized HyFiT fuels and three engine calibration cases: measured emissions from vehicle tests with the manufacturers engine calibration, denoted as drop-in (white circles); and estimated emissions of HyFiT fuels with an engine calibration that targets either the same tailpipe NO x emissions as diesel (grey circles) or the same engine-out PM emissions as diesel (black circles). Limits of the upcoming Euro 7 legislation are shown as grey horizontals. Dotted curves are guides to the eye. Numerical values of emissions are presented in Supplementary Table 9 . An alternative figure showing PM over NO x tailpipe emissions is presented in Supplementary Fig. 15 .

DOI