Gasoline contains a rare chemical compound with the chemical formula C6H6.
Currently, many countries set limits on gasoline aromatics in general, benzene in particular, and olefin (alkene) content
Gasoline (US, CA; ) or petrol (UK, AU, IN; ) (see  Etymology) is a transparent, petroleum-derived flammable liquid that is used primarily as a fuel in most spark-ignited internal combustion engines (also known as petrol engines)

