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AMF - Implementing Agreement on Advanced Motor Fuels

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Ethanol as low concentration component “E10”

In maximum, 5, 10 or 15% ethanol in gasoline can be used for conventional cars depending on the regional regulations. In Brazil, cars are slightly modified for ethanol concentrations up to some 25%. Exhaust emissions form new cars are low, and absolute differences between fuels are small in normal driving conditions. The effect of low-level ethanol on exhaust emissions is mainly seen at cold-start and heavy-driving conditions.

Ethanol properties

E10 gasoline blending

E10 emissions


IEA AMF work on ethanol:

  • Annex I, -1986: “Alcohols and alcohol blends as motor fuels”
  • Annex IV, -1994: “Production of alcohols and other oxygenates from fossil fuels and renewables”, download report
  • Annex XXXV-I, -2008 : “Ethanol as fuel for road transport”, download report
  • Annex XXXV-2, ongoing: “Particle measurements: ethanol and butanol in DISI engines"
  • Annex XXXVI, 2007–2010 “Measurement Technologies for Hydrocarbons, Ethanol, and Aldehyde Emissions from Ethanol Powered Vehicles”, download report

Other References:

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