Welcome to Oilburners. Mostly 6.9 and 7.3 info on here, but there are some 6 liter guys on here who can help you out with your new rig.
Post your questions in the 6.0 Powerstroke section and I think you'll get more input.
My suggestion would be to read the 6.0 Powerstroke Tech Articles, and think about getting a tuner to use as a monitor to keep an eye on your delta. Read up and you'll figure it out, sounds like you may not have measured the oil temp vs coolant temp delta, which might bite you on a 6.0, but we'll keep our fingers crossed for you.
Good luck and again welcome aboard.