Folks have been experimenting with ethanol in modern combustion engines even when they weren't so modern. Nicolaus Otto, the inventor of the traditional four-cycle engine, used it to power one of his ...

Premium gas doesn't provide any more power or contain better additives than regular gas, and it contains the same amount of ethanol as other grades. It just resists detonation (knock) better than ...

Forbes contributors publish independent expert analyses and insights. I analyze petroleum economics and energy policy. Tempted by lower priced ethanol? Keep in mind that the corn-based moonshine ...

87 octane gasoline, often called "regular" gas, is one of the most commonly used fuels in the United States. But what gives it that 87 rating is a word you've probably heard a time or two: Ethanol.

Most Arizona gasoline consumers must use an ethanol blend during the winter season. State law mandates that fuel sold in the Phoenix area must include a 10 percent blend of ethanol, by volume, between ...