Hi all. I just took my '05 for her first extended road trip of about 8 hrs. She ran great, aside from munching through the gas. However, I noticed that at the last rest stop before I made it home, the "Maint. Req'd" light flickered on when starting. It now blinks exactly 10 times when I start the car. I've topped off the oil and everything runs great. Any ideas what it may be? I do have an OBD II sensor I can plug into the car, if that will help. Thanks!