About UNEP UNEP Offices News Centre Multimedia Publications E-calendar Awards Employment
image
 
Print Version

Q & A with UNEP Experts


Cleaner Vehicle Tool
[English]
[Spanish]

50 by 50 - Global Fuel Economy Initiative

Additives

Oxygenates
Fuel oxygenates are compounds such as ethers and alcohols containing oxygen that are added to fuels, especially gasoline, to make them combust more efficiently. Adding oxygenates to gasoline can boost octane and, in some cases, reduce atmospheric pollution associated with automobile emissions. Examples of fuel oxygenates are:

  • DIPE (diisopropyl ether)
  • ETBE (ethyl tertiary butyl ether)
  • MTBE (methyl tertiary butyl ether)
  • European Fuel Oxygenates Association - MTBE Resource Guide (2003)
  • US Environmental Protection Agency - MTBE Fact Sheet (1994)
  • TAME (tertiary amyl methyl ether)
  • TBA (tertiary butyl alcohol)


  • Ethanol
  • Valerie Thomas and Andrew Kwong - Ethanol as a lead replacement: phasing out leaded gasoline in Africa (2001)
  • Glenn Hodes, Valerie Thomas and Anthony Williams - Renewable Energy for Development: "A Strategy to Phase-Out Lead in African Gasoline" (October 2003)


  • Methanol
    Miscellaneous Information
    Michael Graboski - An Analysis of Alternatives for Unleaded Petrol Additives for South Africa (May 2003)

  • An Analysis of Alternatives for Unleaded Petrol Additives for South Africa

  • MTBE Resource Guide

  • MMT Health Effects