We have a pajero it's excellent on fuel for an auto, continual air con and round town running. It is a diesel but I usually get around 700km per tank. We drove from Brisbane to Newcastle without filling up and with fuel leftover. Is around $120 to fill but I get 2-3 weeks worth out of that. I like diesel because it's easy to budget unlike petrol which fluctuates, diesel is always around the same price (give or take a few cents).