Originally Posted by suss6052
It can't refer to results which were "erased" when you reset the trip computer. For it to start off higher than reality then drop is more suspect in my mind than giving it time to work out the actual average over a distance traveled. Its not going to give you instantaneous feedback.
Surely the Ford internally knows the instantaneous result, even if it does not display it. My way (which is actually the Honda and Toyota way as well) does not start out higher than reality and drop. It just starts out with an instantaneous result and then keeps a running average.