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  #1  
Old 01-24-2008, 09:12 AM
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Mileage computer accuracy......

Are these things accurate most of the time or what?? Just wanted to see what you guys have seen more times than not.
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Old 01-24-2008, 09:26 AM
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Nope not very accurate at all on our trucks. The outside temp is usually correct.
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Old 01-24-2008, 09:37 AM
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Last time i checked, there was only 2 tenths of a mpg difference between the computer and my hand calc.
I reset my trip and the computer when i filled up
but my compass is never correct, I have tried about 10 times to calibrate it, but it never works plus i feel like an idiot driving around in a circle in the walmart parking lot
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Old 01-24-2008, 09:46 AM
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Mine is usually high by about 0.2 to 0.4 pretty close.
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Old 01-24-2008, 09:49 AM
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You guys aren't gonna believe this but I'm running the DP Tuner on my 02 Excursion and reset the mpg computer when I filled it up the other day. With normal driving some in town and some highway this thing is telling me I'm getting 20.9. Even if it's 0.4 off I'm still over 20!! I could drive all day long like this.
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Old 01-24-2008, 09:56 AM
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i took a trip to the track one time, 500 miles roundtrip at 65 MPH pulling about 2k lbs with a bad hub spinning my front end the whole way and I got 18.2 calculated and about 18.5 on the display. that was all stock (not like i have very many mods now )

20 with city driving? if that is true i need a DP tuner!
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Old 01-24-2008, 10:01 AM
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Quote:
Originally Posted by farmboysdiesel View Post
You guys aren't gonna believe this but I'm running the DP Tuner on my 02 Excursion and reset the mpg computer when I filled it up the other day. With normal driving some in town and some highway this thing is telling me I'm getting 20.9. Even if it's 0.4 off I'm still over 20!! I could drive all day long like this.
I got 22mpg on a recent trip from Houston to Big D, and I think I could have improved on that without much effort. I would say that is not a KRAZY claim !!! I have a friend with a 7.3 Ex and claims similar mileage.

Bob~!
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Old 01-24-2008, 10:07 AM
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You guys are lucky Our excursion says 12.6 ever since we got it. It hasn't gone up or down even on 250 mile road trip. Wow 20 miles to the gallon on winter fuel, just wait tell you get summer blend.
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Old 01-24-2008, 10:36 AM
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My fuel has been doctored on a lil. It was only getting 16 or 17 before with a Hypertech - this DP Tuner made a hugh difference.
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Old 01-24-2008, 12:09 PM
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This is kinda off topic but, my buddy has an 01 7.3L and get 26 mpg with a superchip, I never believed him until we took a 600 mile road trip, and i seen it first hand
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