6.7L Cummins Forum

Hi All: Any thoughts on what kind of mpg I might look for towing a trailer grossing at 10-1100 lb. I've got a 2008 2500 6.7 and haven't towed this trailer yet.
I towed this load previously with a 2006 hemi in a 1500 and got 6 on a bad day and near 10 on a rare good day.
If anyone has a guess I would like to hear. Thanks guys.
Dave.

I have a 14 x 7 enclosed utility fully loaded and shelved not quite at the load u r but close and I get about 12 - 13 mpg avg in a hilly terrain.

I pulled a 32' Travel Trailer from Augusta Ga to near Birmingham Al (300 miles +/-)and mine was showing between 9-10. I was driving with a light foot as well. I estimate the weight was only 6-7,000#. I have an '08 3500 MC 4X4. I thought that was pretty good for this truck.

What are the specs on your truck? DPF or not? EGR or not? mine gets 11.5-12.5 towing

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2008 Dodge 2500 4x4 6.7L Quad Cab. K&N filter. H&S DPF delete (turbo back). EGR disconnected. Mini Maxx tuner (running on 120hp setting). B&W hideaway hitch.

Been averaging 14 to 16 in town and 10 to 13 towing the camper (11K), the wife does get better that I do, when she drives. She did a round trip to Tucson and averaged 14 towing.

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07.5 3500 Quad, SRW, 4X4, Laramie, Leathered, Dark Metallic Gray, 6.7, 68RFE, 20K Reese, Ride Rite's, 2 Viair air compressors, Bully steps, Kleinn Locomotive air horns (5 in all), Billet polished locking fuel door, 'A' pillar mount Auto Meter Pryo, PML X-deep trans pan
06 Durango 285 RL 5'er Lifted by KZ

My mixed city/hwy average is about 15 mpg, about 19 straighty hwy unloaded, and usually about 12 average pulling 11000 lb 5th wheel. 07.5 crew cab 3500 2 wheel drive.

I pulled my wife's car on a U-Haul trailer 1500 miles from just outside Ottawa Canada to Palm Beach Gardens FL. I averaged about 65-70 mph (the company was paying for the fuel) as a driving speed. I was averaging about 12-13 mpg (US Gals). This was before I made any modifications to the truck. I just installed a K&N Air Intake. I suspect I will get better fuel mileage. I will post as soon as I run a full tank.

Wife's car = Toyota Matrix weight 2700 lbs
U-Haul Trailer = 2100 lbs
Total Tow Weight = 4800 lbs

I deliver RVs all over the country. Drove 7400 miles
in last 2 1/2 weeks. Pulling a 38ft toy hauler with a 07 Dodge
w/6.7 Cummins along with Edge chip staying at about 62 MPH
I can get 10-12MPH with no head wind. I should note I have 370,000 miles
on my truck and it seems to be running fine.
Right now I do get a hissing sound with engine brake activated but
think its a bad gasket.

10-11 pulling a 32' fiver (about 12,000), which is the same as my Super Duty pulling 6,000 on the hitch. Completely stock truck.