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Old 01-21-2010, 03:35 PM   #15 (permalink)
cfg83
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Join Date: Dec 2007
Location: Southern California
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1999 Saturn SW2 - '99 Saturn SW2 Wagon
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alexander.foti -

Quote:
Originally Posted by alexander.foti View Post
I have read that if I tell i have a 10 gallon tank (uk gallons) and then input the first fuel adjustment in UK gallons then all other values will be in UK values.

Im not too bothered if the fillup adjustment factor only affect the miles to emtpy becuase I can ignore this knowing my avg and instant mpg values are accurate.
I am actually bad when it comes to this. I never "calibrated" my old SG-I beyond engine size. The engine size is critical. Double the engine size and you will see your reported MPG drop like a rock.

In my fuel log I use my odometer (after GPS correction factor) and (US) gallons measured at the pump. This puts me at the mercy of gas pump innacuracies, but you can't have everything, so I can live with that. I use the same pump when available, but not at the expense of my or another's convenience.

Because I don't have a calibration factor, my instant and average MPG may be off. However, I consider them to be valid *relative* barometers, and I am fine with that.

CarloSW2
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