Well..... I feel that I need to eat a little crow here. I have always owned MH's with gas power and the only other TT I owned was back in 97'... . a used and well worn 1980' 26' Coachmen that I towed with a 1/2 ton Chevy pick-up.
My MH's have always managed between 7 and 8. 5 on avg. and I always thought that was pretty good for a huge 35' with slides. I towed my new 5th wheel this past weekend to a remote atv riding area and was a 3 hour ride away. I filled the fresh tank... . 112gal. and loaded my 2 atv's for a combined weight of 1000lbs. and filled the fuel tank on the trailer and of course my truck. Took it to the weigh station... ... 5500lbs rear axle..... and GCW of truck and trailer was 21,931lbs. Just shy of the suggested GCWR of my truck if equipped with the 5600... . mine is a Goerend auto rated for 20K of trailer weight. My E-Brake has not been installed yet... . hope this week! Truck towed it very well but slowing down when lifting acc pedal was un-acceptable to me. The E-brake will solve that but what I couldn't believe was the mileage difference between my old MH and this combo..... which btw,is very close in weight when considering the utility trailer I towed with the MH to transport my atv's. At 62mph in 3rd gear w/convertor locked and turning 2250rpm... . I achieved 11. 8 hand-calculated. EGT never went above 800 with my towing twins from BD and had much reserve power. Last night,on the way home I used OD at the same speed but egt and boost climbed..... egt went to 1100 at times and I felt I was lugging the Cummins a few times so I downshifted until the road leveled out. Truck avged 10. 2 using it in this manner so naturally,I will just deal with the extra cab noise and leave the truck in 3rd from now on.
I can't believe I can take a 6hr round trip weekend get-away and still have over a 1/4 tank of fuel in my tank! My MH could do that BUT,it held 75 gal of gas.
Alan
My MH's have always managed between 7 and 8. 5 on avg. and I always thought that was pretty good for a huge 35' with slides. I towed my new 5th wheel this past weekend to a remote atv riding area and was a 3 hour ride away. I filled the fresh tank... . 112gal. and loaded my 2 atv's for a combined weight of 1000lbs. and filled the fuel tank on the trailer and of course my truck. Took it to the weigh station... ... 5500lbs rear axle..... and GCW of truck and trailer was 21,931lbs. Just shy of the suggested GCWR of my truck if equipped with the 5600... . mine is a Goerend auto rated for 20K of trailer weight. My E-Brake has not been installed yet... . hope this week! Truck towed it very well but slowing down when lifting acc pedal was un-acceptable to me. The E-brake will solve that but what I couldn't believe was the mileage difference between my old MH and this combo..... which btw,is very close in weight when considering the utility trailer I towed with the MH to transport my atv's. At 62mph in 3rd gear w/convertor locked and turning 2250rpm... . I achieved 11. 8 hand-calculated. EGT never went above 800 with my towing twins from BD and had much reserve power. Last night,on the way home I used OD at the same speed but egt and boost climbed..... egt went to 1100 at times and I felt I was lugging the Cummins a few times so I downshifted until the road leveled out. Truck avged 10. 2 using it in this manner so naturally,I will just deal with the extra cab noise and leave the truck in 3rd from now on.
I can't believe I can take a 6hr round trip weekend get-away and still have over a 1/4 tank of fuel in my tank! My MH could do that BUT,it held 75 gal of gas.
Alan