Realilistic mileage with a fifthwheel.
Just curious what kind of fuel mileage I can expect with a fifth-wheel. 1ton 4x4 duramax srw 36 Ft. 13Klbs fifth-wheel. I realize weather, road conditions whether it is flat or hills or mountains ...
Forum Discussion
43tutor wrote:
For what it is worth, my truck (1996 F250, 7.3L diesel, 4.10 rearend, manual transmission) was getting around 10 mpg towing. This spring I made a few upgrades. All new 4" exhaust, eliminated exhaust particle filter on exhaust, removed exhaust back pressure valve, added a TS performance 6 position chip, and rebuilt the turbo (stock configuration). Now the truck consistently gets 12 to 12.3 mpg towing at 65 mph (11,000 lb 5'er) with the chip set on 50+ HP. Daily driving to work (250 miles per week) the truck went from 18 mpg up to 22.5 mpg (mostly interstate driving at 65 mph). I've tested different positions on tuner chip and it seems like 50+ HP is the sweet spot best mpg. I can dial up to 140+ HP with this chip for hill climbs if needed but so far 50+ is enough. Exhaust gas temperatures with the chip set at 50+ HP keeps the 7.3L in the safe zone.
ok so I want imaging things, I did one trip with my old 99 7.3 which was modified and got 15.7mpg cdn which is 13.1 US in the mountains, and I have been trying to get there with my new truck but I don't think I will in stock form, so until the warranty runs out...
Steve
