Re: Bike prep for trackday
I use regular water and water wetter - some use distiled, but not necessary IMO.
For tire pressure, it depends on what tire. Check with a local performance shop (i.e. does race tuning, not a dealer). There may be someone at the track, but in case there isn't, I'd find out ahead of time.
Tape up the lights and remove mirrors, make sure your brake pads are ok, tires have life left, and suspension is set to the right sag (at minimum) and (if possible) have someone check rebound/compression. Check pressures like you said, and go have fun.
Just ride within your capabilities and don't feel like it is a race. I have seen many people get on the track and go balls out just because it is legal to do so, or make stupid passes, and end up turning their bike into a taco.
Get ready to get addicted!