http://en.wikipedia.org/wiki/Ethanol_fuel
http://running_on_alcohol.tripod.com/
Ethanol from fruit waste
http://www.scienceinafrica.co.za/2006/april/lawnmower.htm
bordo poniente
http://www.flickr.com/photos/17685204@N07/sets/72157603839415521/with/2884028668/
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