I suppose the current generation of vehicles have an oil change indicator. When the oil change light comes on, I'll change it then. Ford wants the consumer to use Motorcraft Synthetic Blend. Everyone seems to have an idea of Which brand of oil to use. Some people think that they know better than the manufacturer when it comes to which weight to Forums like Bob Is The Oil Guy are full of opinions from guys who will actually have their oil sent to a lab for analysis. Then you have all the guys who will cut their oil filters in half to determine which filters are best.
I'm using 5W20 because it is the spec weight, and I already have it on subscription by the case from Amazon. 5W20 works in my pickup, as well as my Honda. Amazon had a decent price for Mag1 full synthetic oil in the 6 quart case. Wally World seems to have good prices on Mobil1 in the 5 qt jugs. Of course, you could always go with Red Line, Royal Purple, Amsoil, Lucas Oil. Pennzoil.........practically every full synthetic will be a decent oil in comparison to conventional oil. Even the Wal*Mart house brand of full synthetic, is still full synthetic oil. I suppose you could go with 0W20, since it is still 20 weight oil, with a 0 winter temperature rating, if you live in a cold weather climate. But don't get creative. No sense in mixing in a quart of 20W50 to thicken it up, or a little diesel oil for good luck. At the end of the day, you should probably pay a little more attention if you've got an EcoBoost or you're running LPG or Flex Fuel.
It used to be that most guys agreed on K&N Filters. Now, Mobil1, Royal Purple, and even aFe are also in the game. If you like Amsoil, they have a filter also. I'm going to use Motorcraft since it is only a couple of dollars, as opposed to between $10 & $20. Hard to use a Wal*Mart filter or Fram, when Motorcraft is only $3.95.
You do not have to stick with dealership service if you're still under warranty. Do your own oil change if you enjoy it and it makes you feel better. Get a set of those magnetic sockets. But a Gold Plug and a Filter Mag. Make sure that you have the right filter wrench.