Depends.
You can pick a handful of things to watch and either view them 1 at a time (2 on the screen) or you can pick up to 8 things and view them in a cycle scan that lasts up to 4 seconds per screen for the pair. Cycle scan is great for just driving around, you can veiw all the things that arent on the dash and glance at them as they run by, 99.9% of the time mine is set up that way. Simple click of a button and its back to "selected" view and can keep whatever I wanted to view up aslong as I want.
IGN ADV, Knock retard 1, MAP in/hgs, rpms, mpgs, volts, trans temp and coolant temp is what I watch.
