John, just yesterday at 27,000 miles my 2011 F-250 the computer, as I was told it would do, told me to change my oil, oil Filters and air filters. Found a FORD dealer and went in at 4:45 and dropped my 5th wheel in the yard and at 5:10 we left, leaving dirty filters and nasty looking oil and 250.00. When I used the Ford dealer last year in Casa Grande they used that Deep Purple synthetic and my Ford dealer in Mi said to use just the synthetic blend. That's what they used yesterday. Before oil and filter change I was getting 9.5 MPG all though the MO. mountains and today we were getting as high as 11MPG. Now that's pulling that 15,500 Cedar Creek 5th wheel @ 75MPH where the speed allowed it and of course 65 all day in IL because they forgot to raise the limet..lol
Don't know about that Georgetown, but I would check a Ford Truck dealer and see what they recommend, then you can always do the work yourself. But to protect the Ford warranty, I think I'd let Ford do the work and keep good records of all service transactions.
You can put a lot of beer in that big fridge.
2011 Cedar Creek 36B2 ordered with outside kitchen removed and a nice big wardrobe in it's place.
Pulled with a 2011 F-250 Super Duty 6.7 Diesel Crew Cab and 8' box with a Hensley BD-3 Trailer Saver. F R O G members.