The Bf109K4 manual states and I quote: "
The Bf 109 K, as most Bf 109 variants, uses a single main 250-liter L-shaped fuel tank...
".
When the Aircraft is set to 100% fuel in the mission editor and the MW50 tank is filled with the MW mix (another option in ME), the cockpit fuel gauge shows almost 400 L.
Any explanation for that?