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!