Ethanol
Fuel type MJ/L MJ/kg Research octane number
Dry wood ( 20% moisture ) ~19.5
Methanol 17.9 19.9 108.7
Ethanol 21.2 26.8 108.6
E85 ( 85% ethanol , 15% gasoline ) 25.2 33.2 105
Liquefied natural gas 25.3 ~55
Autogas ( LPG ) ( 60% propane + 40% butane ) 26.8 50
Aviation gasoline ( high-octane gasoline , not jet fuel ) 33.5 46.8 100/130 ( lean/rich )
Gasohol ( 90% gasoline + 10% ethanol ) 33.7 47.1 93/94
Regular gasoline/petrol 34.8 44.4 min . 91
Premium gasoline/petrol max . 104
Diesel 38.6 45.4 25
Charcoal , extruded 50 23
Uses -- Fuel
Main article : Ethanol fuel
Ethanol (also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is a chemical compound, a simple alcohol with the chemical formula C2H6O. Its formula can be also written as CH3−CH2−OH or C2H5OH (an ethyl group linked to a hydroxyl group), and is often abbreviated as EtOH. Ethanol is a volatile, flammable, colorless liquid with a slight characteristic odor. It is a psychoactive substance and is the principal active ingredient found in alcoholic drinks. Ethanol is naturally produced by the fermentation of sugars by yeasts or via petrochemical processes, and is commonly consumed as a popular recreational drug. It also has medical applications as an antiseptic and disinfectant. The compound is widely used as a chemical solvent, either for scientific chemical testing or in synthesis of other organic compounds, and is a vital substance used across many different kinds of manufacturing industries. Ethanol is also used as an alternative fuel source.