This should be retitled the "Burp, Grunt and Scratch" thread.
But here you go.
Current truck- 2011 F350 long bed crew cab 4X4 dually 6.7 diesel. Daily driver to and from work (30 miles-2/3 highway) I get 15-16 mpg overall. That's doing 75-80 highway speeds. I tried slowing down to about 65-70 for a tank of gas and got 17-18ish. The irritation wasn't worth the savings.
Only mod is a 60 gallon auxiliary fuel tank in the bed.
Prior truck- 2008 F350 crew cab short bed 2WD single rear wheel 6.4 diesel- First year of the DPF/Regen/DEF emission engines. Hated that truck. It would get stuck on flat wet grass. Also got horrible fuel mileage- Keeping it 65-70 on the highway, I got 12-13 mpg. Traded it after 3 years with 30,000 miles on it. Zero mods.
Before that- 2002 F250 crew cab short bed 2WD single rear wheel- 7.3 diesel. Loved that truck. 168,000 miles when I traded. 15-18 mpg depending on driving habits and what setting the chip was on. Stock, it made 275HP/525 lb/ft torque. Mods: 5 position BullyDog chip- top setting 150+ HP, MBRP stainless 4 inch exhaust, turbo back, Turbonetics intercooler. Cold air box. de-baffled turbo pedestal and stainless high pressure oil balance lines. A-Pillar gauges- EGT, Boost, Fuel pressure. Max HP/Tq: 416/824 <-- Essentially the same as my stock 2011 6.7 (400/800)
This truck, running at the 125 HP setting consistently got 16-17 mpg driving my usual (too fast) back and forth to work. My 2011 weighs 1500 lbs more than the 2002, has about the same HP/Tq, is wider and taller than the 02 and gets essentially the same mpg. Plus the 2011 can tow 7000 lbs more.
That's enough grunting and stuff for now... If you'd like to hear about the race cars...
Edit: Forgot towing mpg:
All towing 70-75 with my camper (not the race team trailers)
2011- 10
2008- 8-9
2002- 10-11
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