|
It does not really matter whether the gauge is off or not.
If it is off, it will underreport or overreport by the same margin every time. You'll still learn what works and what doesn't.
Variations in fill-ups can be huge. I've had differences of 7 liters (judging by the point where the fuel needle leaves the F), that's almost 2 gallons.
Fuel pump readings are useful as they give an accurate reading of the amount of fuel you tanked (irrespective of whether your tank is brimmed or not), and will over time become fairly accurate in aggregate.
After several fillups you can use it to recalibrate your gauge.
Tank-to-tank data is not very useful, and partial fill-ups increase the margin of error.
__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
  lifetime FE over 0.2 Gmeter or 0.13 Mmile.
For confirmation go to people just like you.
For education go to people unlike yourself.
|