To clarify:
Fuels now have an “energy” stat, blazemod redefined fuels, and since the change was old, it didn’t add back energy, so the fuel went down like crazy. I believe this has been fixed.
Still, without blazemod or any other mod at all, I found the fuel consumption to be significantly higher than before, and the consumption for electric engines to be way too high.
So I just modified the fuel definitions to triple their energy (and put batteries on the same ballpark as the other two fuels), which, for me, is roughly somewhat higher than before the vehicle changes but not by much. That’s the mod being mentioned, btw, which has been added to the experimentals as a mod called huge vehicles.
This modification was done for personal use and the values used were simply ballpark values, they need a lot more testing before I’m 100% happy with them.