Because certain subsidies and incentives allow many gas stations to sell ethanol for less money than regular gasoline, the fuel is becoming a popular choice among motorists, even if their vehicles are not certified for flex-fuel use. All vehicles sold in the U.S. today are capable of accepting small doses of the alcohol fuel, as up to ten-percent of normal gasoline may be ethanol. Of course, the fuel is available in higher concentrations for vehicles which have been designed to use it, with E85 - eighty-five-percent ethanol, fifteen-percent gasoline - proving one of the most popular combinations.

Apparently, though, the lower price of the fuel has attracted the attention of those looking to save a few bucks on each fill-up. In fact, this article indicates that many users are mixing their own blends right in their tanks. This trend has prompted some gas stations to allow a choice of ethanol mixtures for drivers who want to use it, right from a single pump. Manufacturers warn that using alcohol fuels in vehicles not certified for them could cause permanent damage, so be sure you know what you're doing before breaking those rules.

[Source: AP via The Detroit News]

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