Bad mpg?!?

Discussion in 'Fiesta ST Chat and Discussion' started by AdrianBrewster, Jan 15, 2014.

  1. Mr UFO

    Mr UFO Active Member

    I broke mine in at the track. I'll let you know how long the engine lasts!
    I got 34.5 on the highway going 70 mph on my last road trip according to the fuel slips. In town on my 12 mi commute I average 24-28 calculating at fill ups. This is also on the cobb 91 map. The computer always reads higher.
    Last edited: Jan 19, 2014
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  3. WScottCross

    WScottCross Well-Known Member

    Fuelly is as accurate as the data you feed it. It's the same as doing manual calculations. You are giving it distance and amount of fuel used numbers so that's the most accurate way to track it. It then does the tank and lifetime averages with the data you send.

    It's been pretty accurate according to my GPS comparisons, within a percent or two.
    aborbs87 likes this.

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