Then why don’t we use pure Ethanol in our cars ?
Ethanol Edit
In 2005, driver Paul Dana brought the sponsorship of the Ethanol Promotion and Information Council (EPIC) to his IndyCar team. EPIC is a consortium of ethanol producers that advocate the increased use of ethanol. EPIC was anxious to address public concerns that ethanol use led to engine damage and poor performance when used in street cars. As a marketing effort, it was believed that sponsoring an IndyCar could be used as a tool to promote education and awareness of ethanol use, and to curb the spread of erroneous information. Dana was killed in a crash in 2006, but the IRL already begun a transition to ethanol fuel.
For the 2006 season, the fuel was a 90%/10% mixture of ethanol and methanol. Starting in 2007, the league advertised “100% Fuel Grade Ethanol”, the first competitive series to utilize renewable fuel. The mixture is actually 98% ethanol and 2% gasoline for races held in the United States. It was provided by Lifeline Foods of Saint Joseph, Missouri. The additives satisfied the U.S. government’s requirements that the alcohol be unfit for human consumption, and added visible color in case of a fire. The 2010 São Paulo Indy 300, held in Brazil – outside of the U.S. regulations – utilized a full E100 mixture, the first instance in the sport.
To compensate for the gain of power due to the use of ethanol, the displacement was reverted to 3500 cc. Since ethanol gets better fuel mileage than methanol, the fuel tanks in the car were reduced in size (30 US gallons to 22 US gallons).
Compared to methanol, human contact with the current IndyCar fuel is much less harsh, and the fumes much less irritating. The fumes are often compared with the sweet smell of apple cider or apple cobbler. Unlike methanol, ethanol is not caustic and does not cause chemical burns when it comes in contact with skin.
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