Ok so I have a oil train (This isn't the only train with this problem, just an example) Its transporting oil for the wells to a refiner via the default tank cars that can haul oil of chemicals. Under the route maker I want it to fully load oil at the well and then fully unload at the refinery, but when I press the buttons to fully load and unload it says chemicals, I want oil, it would be great if someone could give me a fix to this.
-Dgiminia