Oxygenated fuels like ethanol spiked gasoline were introduced to supposedly reduce the emissions of carbureted vehicles running too richly. In other words, you are paying for oxygen that replaces some of the fuel. Since most cars these days use fuel injection other than small numbers of classic cars, oxygenated fuels do nothing for the air quality, but they do hurt fuel economy.
Oxygenated fuels like ethanol spiked gasoline were introduced to supposedly reduce the emissions of carbureted vehicles running too richly. In other words, you are paying for oxygen that replaces some of the fuel. Since most cars these days use fuel injection other than small numbers of classic cars, oxygenated fuels do nothing for the air quality, but they do hurt fuel economy.