I did my oil change at 961 miles, used the Motorcraft 5W-20. Gonna stick with it for a while.
I've also heard that you shouldn't use synthetics right away, and even to wait until 20,000 miles before you start using it. When I was working in an auto parts store, that's what I used to tell people too.
Also, the heiarchy of oils that I recall was: Kendall, Castrol, Valvoline...etc. Quaker State was supposed to be up there too. Pennzoil was always the worst in the "independent lab" studies that I read, but who knows who paid for them. BUT to this day, I won't run Pennzoil in my lawn mower either.