<strong>Yahoo Message Number: 16356</strong>I had an interesting experience recently at a Cummins Center in Oklahoma City. I stopped by to see if they could changed the oil and put new anti-freeze in the system. They said sure, our Quick Serve program guarantees that you will get in within a hour....they were right. I arrived there about 11:30 am and by 12:15 the coach was driven in by...