I think everyone here agrees that tank divisions fighting in areas with low supply should eventually run out of fuel.
The key questions are how low supply and how long time?
it can be hard to supply fuel, but if i can supply 700 tanks , i should continue being able to supply some tanks , it should not be impossible to supply because i brought in 350 more tanks , or moved 10Km away
, for time due to hoi4 battles lasting long, and people constantly mass assaulting, 2 days is too low, is pretty much nothing to push , you can get pinned by a force attacking 20w pure inf for 7 days , lose all your fuel and then experience extreme tank casualties worse be the one getting encircled ,
For how long , i think 8 days would atleast keep game playable,
but unless edge provinces are solved , even 8 wont be enough since human will easily hold for 8 days and bring his own numerically 5 times superior tanks and kill their enemies.,
fuel Flow needs to be a lot more diffrent