I ended up doing my first at 6K. I decided every 6 since the stupid dealer says every 12, and the computer will chime in, from what i've read at nearly 20!.. Thats how they offer all free maintainance for 3 years lol
I also drive 2K a month, mostly highway, so 6 seems nice. I just use dealer synthetic, because i cannot find the right oil anywhere else cheaper