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Thread: Fuel economy gauge incorrect?

  1. #1
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    Fuel economy gauge incorrect?

    I just did my first fuel-up and the on-board gauge indicated I averaged 6.5L/100km. When I entered the information in the Micra Fuel Economy log, and in Fuelly it gives me 7.5. Has anyone noticed if the on board info is incorrect? That is quite a difference.


        __________________________________________

        click to view fuel log View my fuel log 2016 Micra SR manual: 7.7 L/100 km ... 36.8 mpg (Imp) ... 13.0 km/L ... 30.6 mpg (US) ...


  2. #2
    Administrator MetroMPG's Avatar
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    Most people find the on-board gauge is optimistic. By how much? It seems to vary.

    Off by 15% is quite a bit (1L more than 6.5L). But others here have reported that much of a difference.

    The 2 Micras I've driven were off (optimistic) by about 5% for one and 8% for the other.

    Keep comparing it for a number of tanks and see if it changes.

        __________________________________________

        click to view fuel log View my fuel log 2015 Micra S manual: 5.0 L/100 km ... 56.5 mpg (Imp) ... 20.0 km/L ... 47.0 mpg (US) ...


  3. #3
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    If you check my fuel log I have been reporting the computer vs real.

    First fill: Real 6.9, computer read 6.2.
    Second fill: Real 6.7, computer read 5.8.

        __________________________________________

        click to view fuel log View my fuel log 2016 Micra SV automatic: 8.0 L/100 km ... 35.5 mpg (Imp) ... 12.6 km/L ... 29.6 mpg (US) ...


  4. The Following 2 Users Say Thank You to Shaggy For This Useful Post:

    MetroMPG (12-12-2016),Stever (12-12-2016)

  5. #4
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    That's a good idea Shaggy, I'm gonna do the same

        __________________________________________

        click to view fuel log View my fuel log 2016 Micra SR manual: 7.7 L/100 km ... 36.8 mpg (Imp) ... 13.0 km/L ... 30.6 mpg (US) ...


  6. #5
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    The onboard computer says I am getting 4.9 when I am getting 5.8 Speedo is off by about 8% odometer is close about 1%.I now have 90k on my 2015 Micra S love the car but the gears are way too short I am going up hills in 5th gear that my truck goes in 3rd and my AMG Mercedes even downshifts.

  7. The Following User Says Thank You to Gary For This Useful Post:

    MetroMPG (12-16-2016)

  8. #6
    Administrator MetroMPG's Avatar
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    Thanks for the info, Gary.

    And welcome to the forum!


        __________________________________________

        click to view fuel log View my fuel log 2015 Micra S manual: 5.0 L/100 km ... 56.5 mpg (Imp) ... 20.0 km/L ... 47.0 mpg (US) ...


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