I have calibrated my Odometers and Speedometers of my vehicles using multiple GPS units (mobile phone, TomTom, Garmin, etc.) I have a pretty good handle on the Odometer accuracy (or inaccuracy as the case may be). It would be useful to program an odometer calibration factor as a parameter for a vehicle. This calibration factor could be applied to the trip data used in the fuel economy calculations to normalize the data and cause more accurate calculations.
It's pretty bad for my motorcycle because I use a SpeedOHealer in my motorcycle to calibrate the speedometer. The side effect is that the odometer reads slightly low now. It would be great to have a
calibration factor applied to my motorcycle data.
Unfortunately I have emailed Paul about this but my suggestion was rebuffed.
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