Mileage Meter Question
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Lead Driver
Joined: Jan 2006
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From: Hartford, WI
Mileage Meter Question
People seem to call it the Lie-O-Meter. However, In the last month and a half, I have checked it accurately. I fill up till I see the fuel doesn't go down any more by rocking the truck. The worst I got was today when it was off by 4 tenths of a mile. It said 13.8 average mileage and I had a trip meter of 466.0 or 33.7681 gals. I filled up 33.344 gals of fuel which translated to a difference of .4241 mpg which seems close enough considering I am taking it to 4 decimal places while the meter is at 1 decimal place. I have checked mileage based on both highway only, city only and combination.
This is a 01 Excursion with the computer reflashed by Ford to the latest software and it has a 7.3L Powerstroke diesel. Fuel station has been kept constant, changed, etc, etc. Also I have run the tank down to about a quarter tank before fueling up.
This is a 01 Excursion with the computer reflashed by Ford to the latest software and it has a 7.3L Powerstroke diesel. Fuel station has been kept constant, changed, etc, etc. Also I have run the tank down to about a quarter tank before fueling up.
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Joined: Apr 2003
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Originally Posted by aklim
Just curious as to why people disparage it when the worst I have noticed is that it is pretty close to what I should get.
People....
RoyC
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Lead Driver
Joined: Jan 2006
Posts: 7,308
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From: Hartford, WI
Well, I wouldn't bet my life on it but like I said, if the difference between what I got and should get is not even half a gallon, I would think it would be accurate enough for most purposes I have.
Fleet Mechanic
Joined: Jun 2004
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From: Coal Valley, Illinois
Originally Posted by aklim
Well, I wouldn't bet my life on it but like I said, if the difference between what I got and should get is not even half a gallon, I would think it would be accurate enough for most purposes I have.
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Lead Driver
Joined: Jan 2006
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From: Hartford, WI
Originally Posted by hink10
Mine was always pretty accurate. You run into real inaccuracy when you are running a tuner or chip.
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Fleet Mechanic
Joined: Jun 2004
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From: Coal Valley, Illinois
Originally Posted by aklim
any tuner or chip or some of them?
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Here is my thoughts.... I've had two Excusions. Both with the 6.0L, one was a 2003 and the latest one is a 2004 with a 2003 engine.
Now my first one the 03's over head mileage console was bang on accurate everytime. I would fill up on a long trip and it would show distance to empty of like 838 miles cuz it would average like 19-19.5
The 2004 ... huh ... that sucker has never been right. At a fill up with it showing 17mpg average ... it won't show over 625 miles to empty. Of course my dealer told me it was fine.
Now my first one the 03's over head mileage console was bang on accurate everytime. I would fill up on a long trip and it would show distance to empty of like 838 miles cuz it would average like 19-19.5
The 2004 ... huh ... that sucker has never been right. At a fill up with it showing 17mpg average ... it won't show over 625 miles to empty. Of course my dealer told me it was fine.