An ether compound added to gasoline to provide oxygen and enhance complete combustion. MTBE has been phased out of California's gasoline. See our fuels website, for more information
California Air Resources Board ARB (California Environmental Protection Agency), glossary of air pollution terms, Sacramento, CA, USA 2013. http://www.arb.ca.gov/html/gloss.htm, (Air Pollut - Amer) {594}