An ethanol-free fuel locator is a device, website or app that locates gas stations selling fuel without ethanol additives. Some engines have reduced efficiency or deteriorate when ethanol fuels are used. Ethanol can also leave a residue on valves and parts that hinders performance.
The Energy Policy Act of 2005 contains regulations to ensure that fuel sold in the U.S. contains a certain volume of renewable fuel like ethanol. Between 2006 and 2007, the Renewable Fuel Standard Program and the Energy Independence and Security Act were signed. These two laws encourage more fuel blending and increase the minimum amount of renewable fuel sold in the U.S.
Ethanol fuel began its reappearance in the marketplace in 1988, when Colorado became the first state to mandate the inclusion of ethanol derivatives in fuels. This was done to combat carbon monoxide pollution in the winter, and other cities enacted similar laws. In 1990, the Clean Air Act was the first of a series of environmental standards imposed on the petroleum industry to combat environmental hazards surrounding fuel use.
Ethanol has been around since the 15th century, but it did not become a popular fuel source until the Ford Motor Company's Model T sparked the widespread use of automobiles. Ethanol fell out of favor as cheaper fuels became available in the mid-19th century.