Very easy to do, I know on my 04 600 twin it calls for 5oz but takes like 8, I bought a funnel with a hose on it and kept filling it till it came out the fill hole and then I let the extra run out into a bowl and then put the plug back in.
thanks for the reply guys, will ask dealer what is the correct fluid. Has anyone changed their ADC fluid? Manual sounds easy enough, open both bleeder valves slightly and keep resevoir full until clear oil comes out both bleeders. Is it actually that easy? lol.