Petrol is a flammable liquid hydrocarbon mixture used primarily as FUEL in internal combustion engines. It is commonly known as GASOLINE in the United States and Canada, and as GAS in the United Kingdom, Ireland, South Africa, and New Zealand. Petrol is composed of a variety of hydrocarbons, including alkanes, cycloalkanes, aromatics, and olefins. The term petrol is also used to refer to the FUEL itself, as well as to refer to the various products derived from it, such as GASOLINE, diesel, and jet FUEL. Petrol can be abbreviated as GASOLINE (8 letters), FUEL (4 letters), or GAS (3 letters).