My truck turned over 150,000 miles today....
Going 60 MPH over Snoqualmie Pass, pulling our 10,000 lb 5th wheel coming back from Wenatchee. I bought this truck in 2004 with only 20,000 miles on it. I figured up the fuel "economy" for this ...
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I recently returned from Rio Hondo, TX with my Coachman Denali 270 FK TT. My 08 Duramax turned 150,000 on the return leg. Averaged 11.7 mpg until I hit the mountains of Appalachia and the overall return trip mileage was 11.3 towing at 65 MPH.
