Hmm, check the 07's oil about every month (about every other fillup). Always seems pretty good. Last time I really needed to top it up was when I was driving back through the mountains from BC the other year when it was -38 (yeah, the heater was awesome!). Was a little hard on it with 4 people, and packed to the limit with Christmas stuff. Other then that it's usually good at it's 3 month change interval.
JasonL_031, sure there aren't any leaks? Seems a little excessive for so new a vehicle if nothing's wrong.