
Gasoline that is blended so that, on average, it significantly reduces volatile organic compounds and air toxics emissions relative to conventional gasolines.
Found on
http://en.wikipedia.org/wiki/Glossary_of_fuel_cell_terms

Specially refined gasoline with low levels of smog-forming volatile organic compounds (VOCs) and hazardous air pollutants. The 1990 Clean Air Act requires sale of reformulated gasoline in the nine smoggiest areas in the U.S.
Found on
http://www.encyclo.co.uk/local/21292

Gasoline with a different composition from conventional gasoline (e.g., lower aromatics content) that cuts air pollutants.
Found on
https://www.encyclo.co.uk/local/20094
No exact match found.