Gasoline. Used in the UK and most of it's former colonies, sans the USA and Canada.
Oddly petrol is NOT short for petroleum.
Brit: Looks like we need petrol. We'd better stop at a station and fill up.
American: Looks like we need gas. We'd better stop at a station and fill up.
By Del
Petrol
Fuel used in conventional internal combustion engines. In North America, this is known as gas. Cf. Diesel, kerosene.
A guy who is overly obsessed with skate boards and lives at home with his mom, is bald, has a pony tail,is 36 years old, never took a bath in his entire life, and plays EverQuest on a skateboard shaped computer that he bought at a dime store for a quarter.