Quote:
Originally Posted by ccrider
do you guys take the readings for your gas log from your scangauge, odometer or gps.
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Odometer vs. pump is the only consistent and most accurate way.
The odometer always records miles consistently. The gas pump can be inaccurate for one tank (due to variations in when it clicks off while filling), but data from multiple tanks is quite accurate as an average because it's how much gas you
actually used.
GPS is subject to various failures (lost satellite, miscalculation, forgot to turn it on, may track only 2D mileage, etc). ScanGauge is very inaccurate for MPG no matter how well you get it dialed in, but it has been consistently accurate as an odometer for me without having to adjust it.