Miles per Gallon
Miles per Gallon
Posting Guru
Joined: Sep 2004
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From: Hamilton, MT
If you start out on the top of a mountain pass and coast all the way down you might get 20 mpg 
I would say if you just do highway you are gonna see anywhere from 14 to 18 mpg and thats what the overhead console will show so you can deduct about 1 mpg off of those numbers.
I would say if you just do highway you are gonna see anywhere from 14 to 18 mpg and thats what the overhead console will show so you can deduct about 1 mpg off of those numbers.
Post Fiend
Joined: Oct 2005
Posts: 10,626
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From: Plano TX and Brentwood TN
Originally Posted by jvoigt
I would say if you just do highway you are gonna see anywhere from 14 to 18 mpg and thats what the overhead console will show so you can deduct about 1 mpg off of those numbers.
Posting Guru
Joined: Sep 2004
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From: Hamilton, MT
You have to understand that there are variable's and no two 7.3L's are exactly the same....same goes for the quality of fuel in your area compared to my area also you probly dont let your truck Idle as long as I do, IMO the more the truck Idle's the more that MPG comp is gonna be off your actual milage and so far thats all my truck has been doing this winter. After all according to my trip computer in My 2005 Mustang GT showed 35 MPG on a 1300 mile road trip through Rocky mountain country, considering that before that trip I had never seen the computer show anything over 19 mpg heh not bad for a Mustang V8.
geeze some people just think they know everything.
geeze some people just think they know everything.
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Junior User
Joined: Mar 2007
Posts: 60
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From: Wisconsin
I have let mine idle so long one winter morning that my MPG was at 1.0! And before that it was at 11.8! I won't do that again! LOL
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Posting Guru
Joined: Jan 2007
Posts: 2,174
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From: Millersburg, OR
The computer lies to you if you have it chipped... I think I have had it read 60 mpg once...
My dad's stock 7.3 gets 20 mpg....
Mine with 37's just got 17.8 mpg... That is hand calc'd...speedo adjusted... highway driving at 55-60 mph..
Normal driving and in town I usually get 15-16...
good luck,
Steven
My dad's stock 7.3 gets 20 mpg....
Mine with 37's just got 17.8 mpg... That is hand calc'd...speedo adjusted... highway driving at 55-60 mph..
Normal driving and in town I usually get 15-16...
good luck,
Steven
Last edited by Layson; Mar 7, 2007 at 12:43 AM.
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Infidel
Joined: Aug 2003
Posts: 1,115
Likes: 2
From: Elkhorn WI
My numbers are close to Layson's city driving...i dont usually go outa town so i never really make highway calculations. Im leaving this weekend for Fort Wayne, Indiana, I went during this past summer from Lake Geneva Wisconsin---->Fort Wayne Iniana with half a tank (29gal tank). Thats without the chip, and exhaust and during summer temps she burns better so...i guess ill see what i get when i get there.
IMO its not bad...and its not great...
BTW where out of WI are you? "Waves at a fellow wisconsinite"
IMO its not bad...and its not great...
BTW where out of WI are you? "Waves at a fellow wisconsinite"
Senior User
Joined: Jan 2004
Posts: 247
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From: Helmville MT
I just did a 1250 mile trip last week. The first outbound leg was in snow and wet and got right at 15 driving 55-65. Coming back the roads were dry and with cruise set at 70, I got 17.3.
mike in montana
mike in montana