Quote:
Originally Posted by kuruma
Anybody here see a discrepency between the mileage that your Prius tells you you're getting and what your own "miles driven - divided by - gallons purchased" calculations show? Over six months of meticulous record keeping, I came up with 44.2 average MPG on my Prius. The car, meanwhile, said 47.5. Pretty big difference.
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I have as much as a 6 g difference between the display and the calculated. Sometimes they are in agreement, sometimes a 1 g diff, and sometimes as much as 6 g. The shading is towards the display, i.e., the display is usually greater than the calculated.