I know there have been several cars that have had the issue with the AVG MPG resetting. I haven't had this problem, but today I noticed something funny. The whole way to work today my average flucuated between 49 and 51 MPG. When I got in my car today to go home from work my readout showed 50.4 MPG. The engine was cold ofcourse, but instantly as soon as I began to drive my mileage dropped to 35 MPG. I didn't do anything out of the ordinary. In the morning it dropped when I first started to drive but it only dropped like 3-4 MPG but quickly returned to the previous reading after warming up and it was much colder outside this morning than this afternoon. By the end of my trip this afternoon I managed to get my mileage back up to 49 MPG. I just found that odd to do that all of the sudden and stay much lower for much longer. My trip A was well above the infamous 62-63 Mile mark.