Now I understand that there is truck stations that do the refueling. But I'm trying to go 100% automated. I want my tractor go get some iron ore, get refueled, then drop ore off at the factory I built. But I seem to have the issue when I roll up to get fuel, the truck stations fills the rest of the cargo bay with coal so when I roll up to deliver iron ore, I deliver coal and iron ore which messes things up. It takes a long time for me to clean the coal out of the smelters and off the conveyor. Now if there was a refueling station that only puts things in the "fuel" slot, could be pretty helpful