who has 340-hp Cummins 6.7 turbo 2500 Allison

I had an 08 HR with 26,000 GCWR. We full timed for almost two years, pulled 3,000 pounds and had no problems. We kept our house in LA and made it to all 4 corners of the country looking for our retirement location. During this period we had no problems maintaining speed on I-40, I-5, I-94 or any of the 2 laners we traveled all over the east. We came up out of Phoenix headed to San Diego on a 100 degree day and never dropped below 65 MPH pulling my empty 7 X 18 trailer. The ECM is programmed to keep torque limited on take off and this relieves stress on the transmission, driveshaft and rear end. It is a very well thought out combination. We averaged around 9.0 MPG over the 36,000 miles we ran the RV prior to selling. Empty, I made it from Dandridge, TN to Lazy Days in Seffner, FL on a single tank. I prayed it would not run out of fuel when I missed the turn in to LD. It did not and I was pleasantly surprised. With side trips to CGs I added about 50 miles to the trip.
Randy