I have pulled for years and truck to truck has been real similar...12-16 depending on load, but I pull heavy like Whit. Empty trailer is 7000# and we will put up to 20k on the deck!

I also have a bobcat and dump trailer combo, and will pull up to 17k on the bumper. When you pull this heavy, mileage over 10mpg is a real bonus. Years ago we did this with a 454 chev and got all horny when we broke 4mpg....things have changed.

Keep in mind, that semi tractors only get 4-7 mpg and they are designed to do nothing other than pull!

Longhorn's Sig:

Brad

2008 MegaCab 3500 Laramie Auto, Airaid CAI, FLO-PRO DPF Delete 5" TBE, 35x12.5x17 Toyo M/T, Customized Carli Starter Kit, Carli Long Travel Airbags, Remote 2.0 shocks, and Thuren Drop Links NEXT: (Thanks to my suspension guru Kevin at High Rollerz Trucks and HRT Offroad), EDGE HOT Juice/Attitude, Raider Canopy, Mopar BedRug, Bushwacker Pocket Flares (NEVER AGAIN)!

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16-17mpg with my 32' 5th wheel toybox (14,800 loaded). I will get to see what it is with my new one soon, 41', 19,000lbs. 6th gear, use cruise, NEVER dropped a gear to keep speed. Pulled on a buddies supercharged F150 that was pulling a sub 3000lb boat going up a 5% grade too. Had to pass him because I got tired of dropping speed to not rear end him.

Oh, longhorn, have you seen the milage out of the Mercedes in the newer freightshakers? 11-12mpg loaded. With 80,000lbs total.

Redneck2's Sig:

05 Dodge 3500 quad cab, 2wd, long bed, 6 speed. TST, Edge EZ, FASS150, AirAid, straight pipe, HTB2/66, and a Val Air Dual Disk clutch w/3600psi pressure plate.

Soon to come, twins (66 as a small turbo) Smarty, head studs, twin CP3's, and more.

Father in-law is running an 06 and he hasnt done that good yet, but high 8's to 9 is common. He loves it!

depends what im towing
with the 40' gooseneck and 16,000 lbs about 12.7
if i tow the 15' goosneck with the 7' box its 7.5 to 8.5
the 8.5 is with the new air deflector otherwise it was 7.5 loaded or empty

i just did 4 different google searches trying to find more info on your above quote.....i couldn't find anything, if you could provide more info or a link, i would appreciate it......

thanks

Maj Easy's Sig:

04 2500 Cummins, 6-sp manual, 2-wd, reg cab, silencer ring mia, S&B Cold air intake, 4 inch turbo back Pinnacle Performance exhaust. 09 Safari Cheetah by Monaco, 42 ft., tag axle,400hp Cat., 6 sp Allison Tranny, Variable Geometry Turbo-Engine Brake, Auto idle PTO, 2 Overdrive gears, the coach has air ride with 10 airbags, 10 shocks and a computer controlled in motion leveling system

keep in mind that the mercedes motor is pretty much a detroit 60 series
DC bought up detroit diesel a few yrs ago now
found this out when i was pricing and building a freightliner m2
and was flopping on putting a detroit 60 or a MB engine in it
sales man grabbed 2 brochures and said now whats the difference besides the valve cover

I don't have a big trailer now but I get 18.5/19 town and country with my open car trailer and 41 Willys aboard. About 5000 #'s. Don't even know it's back there.

Son's "Burb" gets 10 on a good day pulling the same thing.

bentwings's Sig:

99 Dodge Quad Cab, dually, Black, 2 x 4,brush guards, big tow mirrors, 5 spd, 4.10, fuel pressure gage, Vulcan relocate, VP-44 victim, straight pipe. winter chains, 3000 w gen, Smarty

Towing 20' goose neck with a couple of horses, total weight around 11000lbs getting about 14mpg. My truck only has 3500kms on it hope to see some improvement when I get some more kms on her.

magram's Sig:

07 3500 CTD, B&W TURN OVER HITCH, PRODIGY BRAKE CONTROLLER
THAT'S ALL YOU NEED!!!

with my 6 spd, running at about 70-75 mph, and my car trailer and jeep (about 6500 lbs) I get about 14.5 mpg.
Scott

dieseljunkie's Sig:

2004.5 2500 Quad Cab Molten red with silver lower stripe, long bed, 4x4,315/70/17 Firestone Destination A/T's, Mopar under the rail bedliner, rubber bed mat,Updated in tank lift pump after my first kill. Isspro boost,EGT, and Fuel pressure gauges, Muffler MIA, Silencer Ring MIA AMSOIL throughout, including a EA Drop in air filter.Kills: 1 LP 08/04/05. 22,467 Miles, 1 center carrier bearing in rear drive shaft 4/24/10 62,480 miles.

I get about 12 to 13 with 28' nomad weight is 8360 dry and I ran 315 bfg's

STOVEPIPE's Sig:

97 DRW Cummins 4x4

God to have a manual!

I average about 10 if I stay on the highway, problem is I never get a long enough stretch to do it (alot of stop/turn/stop/turn/stop/go/etc.). And I'm sure the 3.54s don't help in that situtation either. Tend to come across the scales b/w 22k and 27k loaded and around 12,750lbs. empty with my stock trailer.

ndurbin's Sig:

1994 Dodge Ram 2500 CTD, DTT auto, #100 plate, 370s, alil bit of timing, BD Super B Special, 4" exhaust to 5" Aussie stacks, and an AFE PG7 intake.

"Just gotta keep plugging away"

With the amount of towing I do, Im starting to wish I had an auto.. I just love the punch it and GO! Rowing through the gears can get a bit old sometimes.
Scott

Funny, i tow a 3500 lb Boat from Orlando to tampa often with my 7.3 powerstroke Dually and my last run was 23.6mpg doing 75mph, my other car (4 banger) got 25, so i guess i am doing pretty good!

Damn right you are!!!!

I get about 16 unloaded around town and on the interstate.

This past weekend i got about 11mpg pulling a 10K lb camper between 65-70mph on US Hwy 280 between I-85 and Birmingham, AL. It's a pretty hilly stretch of hwy and some of them are rather steep...guessing 10% grades or more? I was able to keep it in 6th gear on all the hills...would loose speed but never enough to have to down shift. had her pushed to the floor alot!!! Really need to get me some gauges so i know how high my EGT's are getting

We left Washington state on a vacation pulling a 29 foot 5th wheel camp trailer all the way to Michigan. The Ford 6.0 only had 800 miles on it and I averaged 15-19 mpg. Cruise does help. Now at 59000 miles, I'm getting 19-22 mpg.