Petrol (US) (3)
(Other definitions for gas that I've seen before include "THIRD PART OF 23" , "It's not liquid or solid, like American petrol" , "Fuel; idle talk" , "Petrol (USA)" , "chew the fat" .)
(Other definitions for gasoline that I've seen before include "US fuel" , "Sole gain (anag.); petrol" , "American petrol in full" , "Fossil fuel" , "N American petrol" .)