Forum Discussion
larry_barnhart
Jul 23, 2017Explorer
Toolguy5 wrote:
Going from Cleveland Ohio to Yellowstone west gate. Down to Moab then to Arizona ( painted desert ).
Across Arizona through New Mexico, Texas , Oklahoma on I-40 back home to Cleveland.
I averaged just under 13 miles per gallon.
5er loaded is around 13,000 lbs.
Truck GMC 3500 Denali 6.6 Diesel. Average speed about 63 MPH. I get my best mileage between 58 and 63 MPH.
I also found that just over 60 mph give us the best fuel mileage.
I feel going up a mountain and then going down doesn't hurt the end result as much as like the hill country. I had a perfect DIC for mileage and fuel used until 2009 when the cluster gears went out and never was perfect after the repair. I hand do the mileage going south and this is the normal result. DIC shows 11.4. math is 11.18.
22920 combined lbs. Little less coming North each April. I don't hotrod. chevman
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