I would like to see if you could make it so we can use fuel from other mods like galacticraft fuel.

Duplicate request #64
Feature is coming in 1.16 though

If I recall correctly I do believe immersive vehicles does this by adding all ingame fluids to the config with them being 0% efficient (unusable) and lava being the default fuel (100% efficiency), Cray could do something similar but having Fuelium being the default fuel