This article discusses that ethanol is a renewable fuel that is already well-entrenched and poised to spread into new arenas. Early in the automobile era, ethanol actually had a chance of becoming the primary fuel instead of the alternative. EI0 accounts for 10 percent of all gasoline sold in the United States. Its major advantages are that the ethanol fraction, derived from corn or other biomass, is reliable and renewable, and it is clean burning, composed of carbon, hydrogen, and oxygen. Ethanol is set to grab an even greater percentage of the gasoline blending market, due to the banning of the most commonly used gasoline additive, methyl tertiary butyl ether, in California, New York. In order for ethanol to become more widely used as a fuel, either the cost of production must be significantly reduced or a national standard, mandating the use of renewable fuels and providing incentives for their use, will have to be issued.