I'm sure this has come up a million times before in the past and, in fact, I think there was a decent enough answer given at one point. However, I have long since forgotten what the answer was, so I'm going to go ahead and ask here:
What do robots in the Rockman universe bleed?
Most people say they just bleed motor oil, but I seem to recall that there was a very specific fluid that flows through a robot's/android's/Reploid's "veins" much like blood flows through a lot of organic things. What I can't remember, however, was what it was. It's red like blood (sometimes a darker shade of red than normal blood), has the viscosity of blood, and apparently stains and sprays like blood, but it's not supposed to be blood.
So what is it?