Steam locomotives with pneumaticraft LPG, I think it should last around 45mins in a locomotive at max heat, more if the heat is lower. An LPG bucket has slightly less than the burn time of a stack of coal blocks for reference.Thanks, I'll look into that. Although I still need some fuel for my trains. Power isn't a problem, though I still in some way gotta create fuel for them and it seems difficult without a large tree farm of some sort.