A option to make the fluids compatible with other mods would be to make raw items that have a assigned value, i.e. “Drop of Kerosene” which can be used in modpack making or melted in thermals crucible into 250mB of that respective liquid, this could be done with a dynamic register thingy with metadata sets
The dangerous liquids like BF Fuel, Schrabidium Trisulfide, Antimatter and such would use the magnetic extraction device as upgraded reacher, kinda?

this could be done with a dynamic register thingy with metadata sets

what