Congrats on a great truck! You're going to love it. I second the FTE forums recommendation, lots of great owners/members (including me), with lots of info. I have used Ford's PM22 additive with every fill up. While Ford doesn't officially require it, my service writer recommended it. It boosts cetane, and lubricity which is sadly lacking at many US fuel stations. I change oil every 5K, drain water seperator every month, and fuel filters every 10k. Other than that follow service intervals and you'll be fine. The best advice I've received though from many sources, is to work it hard frequently. These trucks love it, and it will help keep the egr, and emission equip clear. The turbo, and HPFP were improved in '15, as well as the exhaust brake. Enjoy! I sure love mine!
On edit: One more thing. Don't idle it for long periods. The days of diesels doing that is gone. It can clog up the egr etc.