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Post your MPG in Diesels.

countrycampers3
Explorer
Explorer
Hi everyone,
Looking at getting a diesel truck. Would appreciate your feedback on what you have, and what you get.
Please give me a Truck year, make, model, transmission, rear end ratio.

Empty MPG, City/Hwy.
Loaded MPG City/Hwy.

Plus were your at, Mountains, flatland, rolling hills.

Thanks Doug:C

Well thanks for all the info everyone. I see this post is not dead and it keeps on giving.
Update. I ended up getting a 2008 Ford F-350 dually Flatbed. And a New 2013 NorthStar Arrow 8.5 Love them both expecially the extra storage compartments on the outside of the camper.
Now these numbers are winter diesel and that tends to be a little less economy I would assume.
Empty 55mph - 15-19
Empty interstate 75mph - 12
T/C loaded - 9.5 any speed
Heres a photo.


2008 Ford F-350 Dually Flatbed

2013 NorthStar Arrow 8.5 with side storage compartments.
136 REPLIES 136

jimh406
Explorer III
Explorer III
My truck is the one in my signature an '06 Ford SC longbed automatic 3.73 with the zoodad mod, walker big truck muffler, intake elbow, and I run PowerService Diesel Kleen in every tank.

You didn't describe the MPH which makes a lot of difference. In any case, I've got close to 20 at slower speeds of 55-60 unloaded and 14.5 loaded at the same speeds with some hills.

My more typical mileage at 65-75 are 18.5-19 and 12-13 with a combination of hills and mountains. I don't really have a clear city mileage since I tend to not drive my truck very far in city.

I can't drive very far without dealing with significant hills and mountains considering I live between two mountain ranges in Western WA.

'10 Ford F-450, 6.4, 4.30, 4x4, 14,500 GVWR, '06 Host Rainer 950 DS, Torklift Talon tiedowns, Glow Steps, and Fastguns. Bilstein 4600s, Firestone Bags, Toyo M655 Gs, Curt front hitch, Energy Suspension bump stops.

NRA Life Member, CCA Life Member

JumboJet
Explorer
Explorer
Live in the hills of NW Arkansas at 1200 ft.

2008 Dodge Cummins diesel 6.7L - 350 HP - 6 speed Auto
Empty back and forth to work: 15.6
Empty on the highway - 19 to 22 (according to direction and velocity of wind)
Loaded at 11,000 lbs.: City 15 to 16
Loaded at highway speed 12.5 to 14 (according to direction and velocity of wind)

July 23, 2012 Fayetteville, AR to Broken Bow, OK and back to Fayetteville, AR - 396 miles - I averaged 22 mpg running empty 65 & 75 mph - no wind - and I still have almost 1/2 of the tank of fuel I filled up in Poteau, OK on the way down. Amazed me the fuel mileage because this is the absolute best the truck has ever done. I have averaged 19.8 according to the overhead several times going to Dallas, TX and back.

I have hand calculated many times and the overhead is close, but always under by .2 or .3 mpg.

Truck has 72,700 miles on it and 2/3 of those were loaded.

Pictures are on I-80 Rawlins, WY October, 2011 with a nice tailwind - I never reset the overhead display from the time we left Arkansas to Washington State via Missouri, Iowa, South Dakota, Montana, down to Oregon and back home through Utah, Wyoming, Colorado, Kansas, and Oklahoma. My fuel gauge, overhead MPG, and speedometer are the most accurate I have ever had.