The tank cars that I use have 2 loads. Load 1 and load 2 because they are capable of loading many different items. I load crude oil in load 1 and have disabled all the items in load 2 BUT after loading at a loading station (refinery) the tank car is showing 91,700 units for load 1 and 91,700 units for load 2. As stated I have no items showing in load 2. Is the game/sim/program seeing 1 load at 91,700 units or is it seeing 182,400 units? What the heck is a unit? I have 19 tanks cars fully loaded with 2 Dash 9's and they are struggling on a flat route. The lead loco is pulling 3165 tons. Based on Phil's rule of thumb, 1hp for each ton, 2 dash 9's should be plenty of power. How do you arrive at that figure of 3165 tons? Thanks.