Mykltron wrote:I don't think you'll be getting a definitive answer on this one! But the idea of multiple fluids makes the most sense as mammals have all sorts of things flowing inside.
Blood takes food and energy to the muscles so perhaps energon serves that purpose, but then maybe the energon is transported in a fluid. Or maybe the energy is transmitted by electricity through wires and they don't have liquid for blood at all. After all, if we built a robot it would work that way but then it wouldn't be alive. So who knows?
Well, if ya think about it, they all run on some sorta power source, like a battery. Energon isn't a liquid, but a form of pure energy. So my guess is energon is completely absorbed or broken down and stored like fat cells in some way or another, so i don't think there are veins or arteries transporting it as a liquid. Most likely wires that transport the energy from the receiver to the battery and then to various motors.
Coolant, oil, brake fluid, and hydraulic fluid are also must haves. They all have moving parts in robot mode and in car mode, so this makes coolant and oil a necessity. Brake fluid because they are using some sort of disc breaking mechanism. Hydraulic fluid because they have to have some sort of crazy piston/hydraulic system in place to have all of those moving parts and strength to walk, move their arms, etc.
Now it is reasonable to hypothetically theorize that all 4 of those fluids are most likely concentrated into 1 or 2 "super fluids" that serve as multipurpose fluids for the entire body to make them as easy to maintain as possible. Remember, in some continuity or another, the quintessons made these guys as laboring slaves, so it is logical that the initial design would have taken into regard building a worker that is as efficient as can be without requiring a whole lot of maintenance.