General Reference: Liquid fuels
Alcohol fuel The use of alcohol as a fuel for internal combustion engines, either alone or in combination with other fuels, has been given much attention mostly because of its possible environmental and long-term economical advantages over fossil fuels.
 
Petrol/Gasoline Gasoline or petrol is a petroleum-derived liquid mixture consisting primarily of hydrocarbons, used as fuel in internal combustion engines.
 
Diesel Diesel fuel is a hydrocarbon mixture obtained from petroleum.