Maybe, but I believe it will involve using trip data from the map. If you have the Touring, that is possible. The only other way is possibly using the screen that shows your last three mpg results. I really don't like either one of them - though the one via map is pretty accurate. The problem there is you have to input your destination, and get your trip measured that way. It could be continuous, but that'd mean constantly inputting destinations. So it's not very useful. Maybe someone else has found another workaround. ScanGaugeII will also run a constant MPG for you - but only one trip at a time. It doesn't hold data after you've shut down the car. I think it's a glaring error now that I've had the car awhile. I think many of us would like continuous as well as historical MPG data via the car's computer. It is possible, but Honda apparently hasn't implemented it fully - or at least in a way I'd like to see it.