Quote:
Originally Posted by WebG
You said "Over the course of all my fillups, my fuel economy using the calibration factor on the odometer is almost exactly the same as the lifetime display fuel economy."
There's a lifetime fuel economy display? The one on the nav can be reset (obviously), but I am not aware that there is a lifetime display on the nav screen in addition to the resettable one. Ditto the dash display -- I thought that one reset when the nav resets (perhaps I'll double-check when I fillup today, but I'm pretty sure that the two are tied together on my HH)
anyways, congrats on all that...
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I should have said the lifetime fuel economy I calculated from the display fuel economy. At each fillup, I also add the display fuel economy in my spreadsheet. I take the miles driven on the tank (from the odometer without calibrating) and divide by the display fuel economy to get what I call "display gallons". The total miles driven as recorded directly from the odometer divided by the total display gallons is what I refer to as the lifetime display fuel economy.