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Old 02-23-2011, 07:07 PM
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MPG gauge.....

Since I got it last week I've been around 15.5, which is no big surprise. It never really moved from there. Now yesterday I stopped and got gas on the way home. On the way to work this morning it started to rise into the 16's which seemed odd since I've never seen it move more than 1/10th . So I reset it and it started reading 124 to 125 One more reset and it seemed normal, but rose steadily to around 20-21 or so. Was back down to 17's on the way home. Seems like it went from never moving to constantly moving. Which one is normal?
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Old 02-23-2011, 07:14 PM   #2
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You need to leave it at least 10 miles to get any kind of accurate reading. I typically reset it every time I fill up and I am always in the same ballpark when I go to refill again.

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Old 02-23-2011, 08:48 PM   #3
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Its like a overall average. Wouldn't bet money on it. I once reset it when I was doing a 12 mile straight drive on a local highway at 60 mph and got 25.4 mph. Wish that was a normal thing. I typical get 17-20 in my JK when I do it by the Mileage vs. gallons on fill up
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Old 02-23-2011, 09:09 PM   #4
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And ignore the DTE (Distance To Empty) gauge. That will fluctuate 5 miles, or more, in 1 mile of actual driving. Especially, the the deeper in the tank you get. i turn it on when the gauge gets below 1/2. Just to watch the fluctuations.

I tried to be good, but I got bored...
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Old 02-23-2011, 09:20 PM   #5
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My mpg varies a great deal depending on wether i'm heading with a tailwind or a headwind.

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