I got a worst of 16 and a best of 22 here in New Mexico. On the highway, I keep to whatever the speed limit is (65 to 75). I don't drive it easy all the time though. It sounds too cool and goes to well with my foot to the floor.
If I wouldn't pull a trailer on just about every tank I could probably get better but usually I can get 250 miles on the rear tank which is somewhere around 16. If I don't pull I can get 17+. If I pull a trailer for the entire tank its around 12.
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’97 F-250HD, PowerStroke, E4OD, 4.10 LWB x-cab Hypertech Programmer, Tymar style intake, Banks DP, Banks Boost and tranny time gauge, Insspro Pryo, Insspro Turbo Temp monitor, BFG 285/75/16, exhaust brake, Headache Rack, spray in Ryno lining, Wilson Truckers Cell antenna, Ford AIC 14x,k. Coming Soon, Dana 60! http://photos.thedieselstop.com/show...=63546&thumb=1
Vol. Firefighter 2 years and running!
'95 E-350 PSD, all stock, just replaced trubo and IDM 306K and runs strong.
'78 IH 1950B Dump Truck, Cat 3208 N/A, Air gate, 5 speed/ 2 speed rear-end, air brakes.
I run 75 mph .I dont baby my pedel.runs great 13.5to 15 miles a gal. 13 going in the mountains in west va. with 3 four wheelers.
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1997 f350 4door 4wheel drive long bed .215000 miles . 4.10 gear.3" down pipe , tymar intake .banks gauges on piller that i dont like, all three dont match..march08 got a wildman chip econ.tow.extreme.and its the best up grade yet.
while loaded with 2 quads and 35ft holiday trailer i get 12-14 mpg 4.10 gears 3.5" down pipe 160cc injectors and dp tuner if un loaded on economy setting i get at best 22mpg have never diplicated it though so average of 20 unloaded
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drag racing is like sex it's more fun to do than to watch
I average 16-18mpg with mostly hway driving at 65-75 mph. I don't baby this thing though either. Sure I could see better #'s if I did, but how much fun is that? Pulling my 24' TT with quad and dirtbike in the truck through the Rocky Mountains I got 13mpg doing 55-60mph. Still better than the gassers get!
I havent really checked mine since I rebuilt injectors, ect. I was getting 15 with sloppy injectors. I imagine I will get the same if I keep my current driving habbits...sooting my friends up that is I like being able to sit there at work and pour some over a car and have an operations manager laugh at it.
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1994 F-250 PSD, 280+k and still strong, 2wd, zf5 close-ratio, 4.10 rear, Tymar intake, Valeo SMF, 205* T-stat, DIY Aux idle control,shot the cat, dual trucker antennas, 5600 pounds, matching autometer ultra lite boost and pyro. DIY stage 1's, ts 6 pos chip (stock anti-theft 50 75 100 140), excursion HFCM fuel pump on its way
Nicknamed the american bear http://community.webshots.com/user/91diesel **91diesel AKA anthony2010**
I get about 17.6mpg ~65-85mph ~1700-2200rpm most of the time and aways have my foot in it at starts, im sure i could get 20+ if i didnt have my foot in it all the time, down pipe, straight piped and tymar intake, with intake i saw ~1.5 better mpg
1964 F350, 24v 5.9 Cummins not even close to broke in, New Nv4500, Turned Np205, Custom Dana 70s Front and Rear, Two 20000lb PTO winchs, 14" lift, 49" iroks!!, 97 PSD acc. with wire harness swap, 87 F350 frame (still sits in shop with fresh coat of JD green/yellow paint "Built Not Bought" 0 miles,
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Pulling my 24' TT with quad and dirtbike in the truck through the Rocky Mountains I got 13mpg doing 55-60mph. Still better than the gassers get!
97 F350XLT, CC, SRW ,LB 4x4, 4.10LS, E40D, genuine Tymar intake, Diamond Eye 3" DP- 4" back to 5"tip, Stage 1 inj, IDM mod, gutted EBPV, modded pedestal, TW 6 pos chip, 1.0 turbo, shimmed FPR, Dipricol Optix pyro, boost & tranny temp on A-pillar, Pioneer CD, SIRIUS Sat. 
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