Locomotive UI fuel clarity
Currently, and it did take me a while to realise how this works, to be able to differentiate between the fuel *usage* and the fuel *capacity* of a given model locomotive, you have to ALT> into the UI and then hover over the fuel entry, for it to then show you the amount consumed/60 (at peak load), and then the amount of actual capacity the locomotive has.
Personally I prefer these just be separated into two distinct entries in the UI and not have to ALT>in to check, this is particularly confusing with the steam locomotives as visually they are not tank locomotives (ie on-frame or boiler saddle fuel and water storage), but currently functionally they are with about 50% of the capacity of their respective tenders, and similarly with the diesel as well you cant just see their actual fuel capacity and it tends to look misleadingly like each locomotive only has a fuel capacity in the single digits.