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Display MPG number doesn't match actual mpg

Discussion in 'Gen 2 Prius Technical Discussion' started by SandyB, Jan 14, 2007.

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  1. John CCP

    John CCP New Member

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    Re: Display MPG number doesn't match actual mpg

    This may be off-thread, but I have been using A Top Tier gas: Shell. It is 10% ethanol.
    1) Does this type of gas actually get you lower MPG?
    2) Does the Integrity rev/mi of 855 need to be corrected if I'm using an 851 rev/mi tire: Michelin X-Ice?
     
    #21 John CCP, Jan 18, 2008
  2. richard schumacher

    richard schumacher shortbus driver

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    Re: Display MPG number doesn't match actual mpg

    Huh! Ya got me there. I don't know why they should differ, unless maybe the MFD is rounding or truncating to the nearest mile for each trip? Is the MFD always higher, or lower, or does it vary?
     
    #22 richard schumacher, Jan 18, 2008
  3. esears1

    esears1 New Member

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    Re: Display MPG number doesn't match actual mpg

    Is it best to hit reset each time I refuel? I have been tracking my gas mileage since I had the car, but I have been hitting the reset button..
     
    #23 esears1, Jan 19, 2008
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