All hydrocarbons undergo hydrocarbon combustion with oxygen. They produce carbon dioxide and water unless incomplete combustion happens in which case carbon monoxide or even solid carbon is produced...
There is no fixed formula for gasoline. Because of the "octane rating" used in motor fuel rating, many users think gasoline contains all octane (trimethylpentane, C8H18), but it actually consists of...
The chemical formula for gasoline varies depending on where it is from. C8H18 is a good average. There may aslo be sulfur, or other trace elements in it.