If you're going to stick with 3,000 mile OCI's then the Motorcraft 5W-30 is fine. My wife's 2002 Explorer requires 5W-30 and she used Motorcraft 5W-30 for the first 30,000 miles with 5,000 mi OCI. I did an UOA at 25,000 miles and it was REALLY good for a dino oil. However, your engine has the option of using 5W-20. Maybe you should consider using Motorcraft 5W-20. It is a greater quality oil for only about $0.40 more per quart than the Motorcraft 5W-30 at Walmart, a bargain. My dealer charges the same $22 for an oil change whether I use Motorcraft 5W-20 or 5W-30. It's a no brainer for me with MY 2002 4.6L F-150 to use the Motorcraft 5W-20. I did a UOA and it was really good. The weather in NJ is not too different from Kentucky so I would think that the Motorcraft 5W-20 would work for you just fine. The wear for Ford Modular engines using Motorcraft 5W-20 is impressive, as well as using Pennzoil and other quality 5W-20's.
Whimsey