ok i use NewWorld pack mod i have done this picture for more explicative
if you replace the water with biofuel it's not possible to have it on the tank if i use bucket for drop biofuel on the tank then i can use the electric engine for drop OUT of the tank that's ok but for use with the pump to have biofuel INTO the tank it's not working that's seem it's not possible to do it
if you replace the water with biofuel it's not possible to have it on the tank if i use bucket for drop biofuel on the tank then i can use the electric engine for drop OUT of the tank that's ok but for use with the pump to have biofuel INTO the tank it's not working that's seem it's not possible to do it