Ok flying this last night in the MA and the FSO i noticed that it will not show 0 or empty when the tank goes dry. In a steady constant climb it was taking me 12 seconds to burn 1 gallon of fuel so as i was watching i noticed you never get an indication that the tank is dry. 30 seconds after showing 1 gallon, it still showed 1 gallon.
Not sure if it's a bug, an oversight, or just the way it really was?