Gas

In the U.S., gas is the short form of gasoline, while in many Commonwealth countries, it is known as petrol. Gas is a petroleum-derived liquid mixture that consists of hydrocarbons and is used as a fuel in internal combustion engines.
There are different types of gasoline in the fuel industry. Small aircrafts use specially formulated, high-octane aviation gasoline, which cannot be used for ground vehicles. Vehicles involved in racing use specially formulated racing gasoline that has very low levels of benzene and an anti-knock index of at least 100. Gasoline used for scientific research has unusual properties, which depend on the nature of the research. Cars with gasoline engines use E85 gasoline that is a blend of 85% fuel ethanol and 15% gasoline. The reason gasoline is added here is to provide a good start and warm up performance to the car, which is possible because of ethanol