Interesting discussion and I have been lurking in the back listening in. Two minor points I would like to add.

Stryker fuel consumption gets much, much higher when the vehicle actually moves cross-country, rather than on semi-improved surfaces. Its actual range is significantly less if you are not moving along road systems.

M1-series tanks get fueled twice a day not just because they desparately need fuel - most are well over 1/2 full on each top off - but because the crews don't trust the fuel transfer pumps to get the fuel from the front cells to the back. Thus, half the fuel is sitting there, not used and the average operational range is significantly diminished while the fuelers are making double the daily runs actually needed.

Tankersteve