Here - it's a breeze! You just drive up to the tank station, and there is a little man who fuels it for you! You don't even have to get out of your car, just give him the money through the window!
And check out how much (or should I say little?) money too:
This was when the Fortuner was not quite empty, but it´s about $18 for a full tank (= £6.30 / €9 / 84SEK / 68DKK / 17NZD!)