“Gasoline” or petroleum is a slice of OIL / Petroleum fermented between 70 and 175 degrees C and a hydrocarbon content of C5 to C11 or C12. Natural gas, which makes up about 15% of crude oil, is used in combustion engines. Normal gasoline is a complex of hydrocarbons such as types of paraffin (alkanes), naphthenes (cycloalkanes) and olefins (alkenes); But octane (C8H18) is considered one of the specific compounds of gasoline.