3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

Whats ur mileage on an 03

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Old May 26, 2008 | 08:42 PM
  #1  
Clayton Poth's Avatar
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From: Pleasanton, Texas
Whats ur mileage on an 03

I was just wondering if yall are making good mileage on any 03 cummins i am lookin at one for 18,000 just wondering.
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Old May 26, 2008 | 08:50 PM
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From: Tomball, Texas
About 17mpg around town and 20+mpg on the highway.

MikeyB
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Old May 26, 2008 | 09:32 PM
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From: Calgary
X2

About the same. A bit better on the hi-wy with the 315's, 22-23. 24-25 if below 65 mph (rare).

Cya
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Old May 27, 2008 | 03:12 AM
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From: Albany,OR
18 on the hi-way and 12 in town
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Old May 27, 2008 | 03:40 AM
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From: Glen N.Y.
About 16 in town 19 at 75 and 20-21 at 55-60
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Old May 27, 2008 | 09:41 AM
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From: In Oroville, Ca., same house for past 46 yrs!
I drive like a "grandpa" according to the kids but I get an honest 650-700 miles from a tank (30-35 gal) of fuel. You go figure.
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Old May 27, 2008 | 01:57 PM
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From: Udaho
Ditto

Originally Posted by MikeyB
About 17mpg around town and 20+mpg on the highway.

MikeyB
Was a little better when I had the stock Michelins on set at 75psi (19 city -23 hwy).
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Old May 27, 2008 | 11:13 PM
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From: Pueblo West
19.5+ mixed/12 towing. Craig
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Old May 28, 2008 | 04:56 AM
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From: Royce City Texas
18 in town,22+ on the highway
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Old May 28, 2008 | 12:28 PM
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From: Houston, Tx
16-17 city and 18ish doin 70. I like the skinney pedal!
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Old May 28, 2008 | 12:56 PM
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From: Bozeman, MT
Averaging about 18.5 around town(a few miles in town and 7 of open road(45-70 mph).
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Old May 28, 2008 | 01:06 PM
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I have about 1000k miles on my conversion, getting 16-17mpg city/hwy.
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Old May 28, 2008 | 02:14 PM
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From: Casco
10.5-11 towing 24' with 3400lb car and equipment @70 mph and 17 city 21 highway can get more but have to run slower highway speeds.
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Old May 28, 2008 | 04:40 PM
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From: North Alabama
18 around town 20-21 hiway (22-23.5 below 65mph hiway)
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Old May 29, 2008 | 07:49 AM
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From: McCall Creek Ms
same here stock 3/4 ton with no mods and at 65 with the cruise own I can get anywhere from 22 to 24.7 miles per gallon according to the electronic meter in the truck. I have changed my tires but I went with Dayton tires that were the same height and width as stock.
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