In chemical terms, bioethanol is an alcohol which is produced by fermenting raw materials containing sugar and starch. The idea of driving on alcohol isn’t actually that new. In fact, Nikolaus August Otto ran prototypes of his combustion engine on ethanol back in 1860!
Ethanol fuels are now used all over the world as biofuel in internal combustion engines. In particular, its use as a fuel substitute or additive in motor vehicles has increased in recent years. In Brazil, many cars already run on petrol containing 85% ethanol, while some even use 100% ethanol. In Germany, E10 fuel containing up to 10% ethanol has been sold at petrol stations since early 2011, replacing premium fuels containing 5% ethanol (E5).