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duramax mpg

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Old 02-15-2011, 12:54 PM
  #11  
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I get 15 average right now (lots of city) due to the winter fuel here in KC.

In summer it gets more like 18 Average.
Old 02-15-2011, 07:37 PM
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08 ccsb 4x4 bone stock. Just got 18.99 mpg for 250 miles at 77mph. A dpf and tune is an almost guarantee 2 mpg, but it is a deff void on your warranty. As soon as mine is up I'm going efi and exhaust.
Old 02-16-2011, 07:42 PM
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I was getting about 18-20 in my dmax.

now that ive destroyed the tie rods, idler and pitman im down to about 14, and my tires wearing droning bad. working on getting replacement parts now
Old 02-17-2011, 06:01 PM
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I get 21 in the summer, 14 in the winter. That is with the ppe on level 10.
Old 03-10-2011, 05:46 PM
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this truck has a sexy stance i wonder what size lift and tires it has.
Old 04-12-2011, 02:03 PM
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I get about 14-16 city and 22mpg cruising at 68mph empty. I get around 12 towing my 14,000lb 5'er.
Old 04-13-2011, 05:05 AM
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Why are people getting worse mpg during the winter? I figured with the air being cooler it would run better.
Old 04-13-2011, 06:39 AM
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Winter fuel blend never gives good mileage gas or diesel
Old 04-13-2011, 10:13 PM
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Ahhh gotcha...benefits of living in LA I guess, it's always the same blend.
Old 04-20-2011, 12:28 PM
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Originally Posted by ztccray
I get about 14-16 city and 22mpg cruising at 68mph empty.
Thats the mpg I get as well.

Delete all that stupid emission crap! Get EFI live and straight pipe it. I had the PPE tuner first, which is the best handheld tuner you can get, however there is nothing better than the custom EFI live tunes! I can go from a 30hp tow tune to a 200hp race tune with the switch of a dial! Plus with EFI live you can add a turbo brake feature which is amazing


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