So... this might start a bit of a debate, but every debate is good for knowledge!

Motorbike coolant... what do you do / what do you use..

Now, about 3 years ago or so, when I swaped my old yamaha thundercat engine, I used ordinary coolant.. if I remember right, it was the blue type, mixed with destiled water...

some people say car coolant shouldnt be used as it attacks the seals on motorbikes water pumps...but does it?
My old thundercat is still about and probabbly now over 60k miles...

Some say, you must use green coolant, not mixed, just buy the ready mixed stuff...

what do you use?

what about if your expansion bottle is empty? do you add coolant? just add destiled water? do you flush and put fresh stuff..?