Fuel oxygenate

Oxygenates are compounds containing oxygen in a chain of carbon and hydrogen atoms. Today, oxygenates are blended into gasoline in two forms: alcohols or ethers. Ethanol is the most commonly used alcohol oxygenate; methyl-tertiary-butyl-ether, or MTBE, is the most commonly used ether oxygenate. Fuel oxygenates are used in gasoline to boost the octane rating and to decrease the toxic emissions in the exhaust.