they say the stock supercharger fluid is good till 100k but... its cheap/easy so do it regularly (20k etc) and if you just got it do it.
change fuel filter and coolant also (the coolant can be tricky to get air out of the system, I had mine vacuum'ed or what ever where they do the suction thing and pull the fluid back through. Drain the entire block etc. Change the heat exchanger path as well and check that motor, great time to change it! as it goes out there is no warning.