How do You do it.
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Diesel Enthusiast
Joined: Sep 2008
Posts: 358
Likes: 14
From: Elko,Nevada
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I want Power, Black Smoke & Mileage
guess I want my cake & eat it to 
Last edited by Sluggo; Oct 27, 2011 at 10:49 AM. Reason: Automerged Doublepost
Diesel Wrench
Joined: May 2009
Posts: 614
Likes: 49
From: Colorado Springs, CO
I get an average of 20. Worst ive seen is 17 and best is 22. All hand calculated at each fill up. I run it to an eighth and fill it all the way up. I did do full deletes with mine. I can run the interstate from Colorado springs to denver and back and only burn an eighth of a tank. Its about 175 miles round trip. Thats running 80-85mph. I have 315s with 3.73 and a G56. 
Diesel Enthusiast
Joined: Apr 2011
Posts: 128
Likes: 10
From: Valdosta, GA
Drove from Albuquerque to Carlsbad NM once. Never hit below 20 mpg. I was at a steady 70 all the way. Completely stock at the time. Heading back was a diff story. Elevation going back increases from about 3k to about 5500ft. Makes a big difference!
