I will sometimes watch the EVIC Fuel economy gauge on long trips. Most of the time I notice that all seems to work fine. The sliding bar shows the present MPG and the little triangle and avg rate seem to move up or down per the results on the sliding bar. I notice on downhill coasting the bar never goes above 33 MPG. My bar shows 0 to 40. I see forum post that their truck shows 99MPG. I also notice that If I drive over 70MPH the sliding bar peaks out at that 33 spot but the avg starts to drop. I will look at the manual CD to see if I have something set up wrong. Does this make sense to anyone?