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View Poll Results: The Official HIGHWAY MPG poll
10 or below 68 10.61%
11 80 12.48%
12 124 19.34%
13 114 17.78%
14 115 17.94%
15 86 13.42%
16 44 6.86%
17+ 23 3.59%
Computer calculated 87 13.57%
Hand calculated 241 37.60%
Multiple Choice Poll. Voters: 641. You may not vote on this poll

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  #61  
Old 02-06-2009, 08:09 AM
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oldirtytruck oldirtytruck is offline
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28000 miles; K&N intake kit, true dual exhaust w/ 2.5 pipe; 265x75x16; 3.73; 4x4

Best is 14mpg worst is 11mpg (no trailer)
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2003 F-350 XLT FX4 V10
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  #62  
Old 02-06-2009, 09:27 AM
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Quote:
Originally Posted by JKBrad View Post
2005 4x4
crew cab
4.10s
285 tires
No mods and I drive it with no regard as to the mileage I get. 14 hwy. If I drive real careful I can get 15, so what's the point? I just enjoy it!
Ditto - tho I usually hold the speed down a little - try to stay at the posted speed.
Best empty (sig truck) was about 15, worst about 8 towing 14K trailer in hilly country. I tire easily any more of the mpg discussions as there are so many variables.....terrain, load, driver style, wind conditions, fuel (ethanol %, winter blend, etc); without knowing all, how can one definitely state who gets the best mileage????
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  #63  
Old 02-06-2009, 04:11 PM
UncleD UncleD is offline
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8 mpg towing, 13 mpg highway, 11 mpg combined

1. 1999
2. Std cab
3. 127,000 (15,000 on new engine)
4. 5 speed standard shift
5. 4wd
6. 4.30
7. 285/75/R16
8. No cap
9. Bone stock
10. 20' gooseneck stock trailer. Weight depends on how many cattle are in it at the time
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1999 F350, Single wheel, Standard cab, V10, 5 speed manual.
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  #64  
Old 11-01-2009, 07:11 AM
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I just got home with my "new to me" 2004 SD and was pleasantly surprised with the MPG. I was hoping for 14, but on flat driving in Nevada, it got 15.4 and really trying to save gas, going from Boomtown, Nev to Yuba City, Ca it got an astounding 16.7. Here's my specs:
2004
Crew cab/ shortbed
76,000 miles
auto trans
unknown gears (I'll check later and edit but FWIW RPM's are roughly 1700 @ 65mph)
285 tires on 17" rims
bed cap
all stock
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  #65  
Old 11-05-2009, 11:24 AM
285exp 285exp is offline
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Interstate driving around 75-78 mph - 13 mpg
Highway 55-60 mph - 15-16 mpg
2001 CC 4X4
No mods
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  #66  
Old 11-05-2009, 12:52 PM
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~10,000 miles clocked to date
'09 F-350
  • Single rear wheel
  • Crew cab
  • 4x4
  • Short box
  • 4.10
  • Automatic
  • LT275/65Rx20E
  • No performance mods

I average ~13.5 running 75 - 80 MPH. Dropping to 65 - 70 adds a solid 1 MPG...bring me up to ~14.5 MPG. As I like to pedal on down the road, I generally tend to run about five over the speed limit....which makes it hard to see where I quit gaining fuel economy on the highway.
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  #67  
Old 11-05-2009, 04:19 PM
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vinmanin vinmanin is offline
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2000 F250SD: 12mpg highway
Diablosport predator (set on ballz to the wall)
6.5" lift
35" tires
custom exhaust
K&N
155k miles
supercab

I got other stuff but thats what will contribute mostly
Driving: moderate/performance
Fuel: 93
tailgate up and no cap

ha ha i could probably get better, but im too much of the glutton for the power
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  #68  
Old 11-15-2009, 09:19 PM
irishsince81 irishsince81 is offline
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2006 F350
SuperCab Long
4x4 w/4.10's
Aftermarket muffler
NAPA Gold Air Filter
295's on 17" rim. Nitto Terra Grappler @ 45 psi.
Living 2 miles from the Highway entrance and doing 64mph max.
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  #69  
Old 01-25-2010, 10:07 PM
Claymore Claymore is offline
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Angry MPG V10 2010

2010 F250 extcab 4x4 8" No bed cover, 250# tool box on bed.

I have 3300 total miles on this truck NO mods. Made a 1000 mile trip and a 400 mile trip @70mph on flat terrain. Only getting 12mpg empty.
In town and on farm I'm getting 10 mpg. Not happy and hoping MPG gets better after 5,000 miles
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  #70  
Old 01-25-2010, 10:39 PM
Claymore Claymore is offline
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Computer off 10%

2010 F250 4x4 extcab 8" V10 4.10 3,300 miles

Computer is off at least 10% from hand calc. Is this normal??
Manual shows I have 38 gallon tank but computer says empty @34 gal
How much useable in 38gal tank???
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  #71  
Old 02-05-2011, 11:34 AM
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I get around 13mpg at 60mph on the highway. My computer is consistently about 0.5mpg more than my hand calcs, so I factored that in when I voted. My truck has ranged from 12-15mpg on various trips, but I average probably 13 overall.

The one time I ran through a full tank running down the highway included going over a mountain pass and I had the cruise set at 75mph for most of the trip. Averaged 12.5 mpg (hand calc'ed)
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  #72  
Old 11-16-2011, 07:12 PM
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ggazz50 ggazz50 is offline
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2002 V10 Highway MPG

I have a 2002 F-250 Lariat CC, short box, V10, 3.73 gears, 4X4, 35,000 mi, highway tread 265X16 tires, ARE cab high cap. Did a 750 mi trip from Ga. mts to NJ. The computer milage was 16.5 mpg driving @ 74 MPH @ 2100 RPM with the cruise on. I'm fairly pleased with the mileage.
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  #73  
Old 11-16-2011, 08:41 PM
duke7581 duke7581 is offline
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wow how are you guys getting above 12. i get 10 around town and barely 12 on highway and thats not speeding much max of 75 mostly running right at 70.
2006 f350 crewcab with topper. 4x4 fx4
134000
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  #74  
Old 11-16-2011, 09:05 PM
trlaluwrru trlaluwrru is offline
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I also got 16+ from Donner to Roseville. Gotta love those downhill runs. I also ran the Neveva section of 80 Sparks to Well and averaged 14+. I was happy with the MPG's.
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  #75  
Old 11-16-2011, 09:33 PM
BareBones BareBones is offline
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Duke, most of these posts involve 2-valve V10's. The 2005+ 3-valve V10's are probably more efficient, but have more horsepower, and the chassis is heavier. The net result pretty much seems to be that the 2-valvers get better mpg.

I get what you get, and even worse in the winter, but the power is just incredible!
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Old 11-16-2011, 09:33 PM
 
 
 
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