What types of fuel are available for automobiles?

Alternative fuels for gasoline engines: For spark ignition internal combustion engines, the conventional fuel is gasoline. Alternative fuels for gasoline are the following: compressed natural gas (CNG); liquefied natural gas (LNG); liquefied petroleum gas (LPG); hydrogen; methanol; ethanol; and so on. Alternative fuels for diesel engines: For compression-ignition internal combustion engines, the conventional fuel is diesel. Diesel alternative fuels are the following: biodiesel, biofuel diesel, coal diesel, natural gas diesel, dimethyl ether and so on.