What is everyone towing?

I'm pulling a 35' Newmar Kountry Star that weighs 14,500# so my gross is 23,300# with full fuel, tools and butts. I have a 50 gal aux tank in the bed and a 3.73 axle in my 2003 F-350 CC, 6.0L, 6sp man trans, DRW, LWB.
Headed back to NC in the morning.

How's that Tow Boss on fuel with that ratio? I get ~11 mpg with the trailer but I have a heavy foot and run 80 mph when I can get away with it. Empty I can get 18 mpg around town.

BTW, I used to operate a towboat pushing barges on the Tennessee River between Yellow Creek, Ms and Decatur, Al. back in 1992. Also ran a dinner boat out of Florence named the Alabama Princess before that.

Old Trucker

 

we get a very solid 11 dragging here at 75 ish to 78ish
empty i might bust 16 occasionally, you got a heavy load for them 3.73's
i was very surprised we hit 23800, it felt like 5k, stys on cruise most of the time .
funny thing is pulling my 7x14 cargo we get 10

 

I just parked on my lot in NC about an hour ago and the 3.73 does well and I run cruise in OD all the time.
Takes me 4 hours to get the 260 miles up here.

 

sounds like its time for a cold one, 98 here now down from 100 yesterday
I sure do lik emy two a/c units, nice and frosty inside.

 

Picked up a 14' Snake River dump trailer yesterday. Dual 7000# axles. Sweet rig, pulls like a dream. And whatever I want to put in it!