I did my first change at 3500 miles the other day, not to say that is the correct mileage and timing for you or anyone else. I wouldn't wait for the 5k to come around for the first change, a new engine could have small metal shavings left from the manufacturer and a new engine during break in could produce micro shavings. For instance: I found a shaving the size of a nail clipping stuck in my oil filter when I did mine last week; however, I think that is a rare case and a first for me. With that said concerning the first change, I will be doing one more change using conventional oil at about 7k miles and at 11k I'll most likely switch to either a sythetic blend or Mobil 1 synthetic. That's how I've done any new car I've owned, not to say it's the right way, but the way I've always done it. Good luck!