I bought mine with 5500miles on it.  Dealer was driving it for a few months.  The sticker said to get it changed at 10k, which I did, at a Ford Service place.  I honestly thought they'd do more for a new owner first service, but they just charged me the cheap $50 it costs to do the work and sent me on my way.  Oddly, they put a sticker telling me to get it changed after another 5k interval.  So what is it Ford?  5k or 10k?  I'll probably shoot the difference.  And now that I know how simple it is to do, I'll probably do it myself.  My last few cars (BMWs and Range Rover) you could barely do your own oil.  I thought this ST would be more complicated, but it's just as simple as the Fords we had that I grew up on....just wayyy faster!