I think it would be very nice if fuel became something you needed to pay for. It would make for good loot, draining veicles, raiding fueltrucks, making fuel supply missions, having a fuel stash at your base that people can try to steal. Maybe it should not be for all servers, as some people like to be able to play around with no thought on the costs. But for thos of us who love the challenge it would be a great feature, perfect for more survivalbased pve communities like the DayzRP-server I am waiting for to start.