Sandman;

I use Huffines, Denton as it's close to home. Small dealership, and they are open on Saturdays. They service both our Jeep and the XFire. I have had two oil changes done without incident, so far. You can also bring your own oil. I have been paying $21.95 with the old style filter. The new one is $18.95, so that would add a few bucks to the next one. They have been good about servicing the Jeep (68000+ miles).

I am not sure how close you are, but it is right off of 35E. Exit at Post Oak Road, turn left, over the bridge, turn left again and pull in.