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. mydream is to spin all four brand new mich.LTX 285tires off the rims .when I do my upgrades will be finished.
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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1996 F350 2WD DRW CC BLACK BEAUTY STG1 160 CC INJECTORS , 3.5" DOWN PIPE 4" MAGNAFLOW EXHAUST, SD HPOP , CPR FUEL SYSTEM , AFE AIR FILTER IN STOCK HOUSING , DP TUNER WITH F5 , AUTOMETER GAUGES PYRO - BOOST - TRANS TEMP - COOLANT , DIPRICOL HPOP GAUGE .
FUTURE MODS ARE D66 TURBO FROM BEANS , SD INTERCOOLER MOD AND WATER METH KIT TO HELP LOWER EGT'S ON HILLS
2002 FORD WINDSTAR SPORT
2007 SPORTSMAN 500HO STEALTH BLACK
2008 SPORTSMAN 800HO STEALTH BLACK
2009 POLARIS RZR NEUCLEAR ORANGE 2" LIFT, 27"SWAMPLITWES ON ITP RIMS , POLARIS PERFORMANCE EXHAUST KIT (THIS THING IS CRAZZZY I LOVE IT )
2008 COUGAR SRX (KEYSTONE) 30FT HOLIDAY TRAILER
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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1997 F-350, XLT, air lumbar support, dually, crew cab, 7.3 PSD, E4OD auto, B+W turnover goosneck hitch, cat back straight pipe soon to be turbo-back, ts 6 pos. chip, starting to polish all the aluminum and steel that i can.
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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