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

Dually Mileage

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Old Jan 18, 2007 | 11:44 AM
  #16  
canadiandiesel's Avatar
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From: Lacombe, Alberta
i had about 50,000 miles on mine before the mods and was getting around 19mpg at just under 2000rpm on the highway. i have about 75,000 miles now and after the mods i am averaging out 23mpg on the highway.
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Old Jan 18, 2007 | 11:47 AM
  #17  
marty649's Avatar
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From: Waycross, GA
Overhead shows 22.1 actual hand calc = 19.72
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