02' 7.3 9MPG, Is this right? - Ford Powerstroke Diesel Forum

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post #1 of 30 Old 12-27-2011, 04:01 PM Thread Starter
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02' 7.3 9MPG, Is this right?

My buddie has a 02 7.3 with 4"Turbo back exhaust and he is only gettin 9 miles to the gallon... He wants to do better but dont know how.Anything he can change or add?...Or is this normal? Any advice would be greatly appreciated

Stock 05 Harley Davidson 4x4 4 door...
afe pro air filter
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post #2 of 30 Old 12-27-2011, 04:15 PM
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In the winter mpg's will go down due to the additive in the fuel to prevent gelling.

Several factors come in to play with mpg's.

Is it a dually, big lift with big tires, what gear ratio does the truck have? When's the last time the fuel filter was changed? How does he drive, is it mostly city or hwy? I have found the best mileage is by not letting the tach get up above 2,000-2,200rpm when permit-table.

This is just a few things to take into account.
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post #3 of 30 Old 12-27-2011, 04:40 PM
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Not right depending on factors as already stated. Many things to check to see if anything else is wrong.



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
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post #4 of 30 Old 12-27-2011, 04:45 PM
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ive never averaged below 13mpg in mine, mods listed below, and thats even including the daily Balls-to-the-wall sprint as soon as i leave work!


SOLD - '03 7.3, MBRP, 38r, DP F5, HPX, RR, DIY 6637, 05 OEM Harley front, 08 OEM rear & mirrors, 20" Moto Metal, 35" Nitto's

Current - '11 6.7 FX4 Larait, Ready Lift 3.5" Leveling Kit, '13 Larait Wheels
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post #5 of 30 Old 12-27-2011, 06:32 PM
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Summer driving I am getting 19.3 mpg. That was driving like an old man with a hat. Haven't checked winter mpg yet.

2002 SRW F-350 7.3L XLT Auto Crew Cab Short Bed
-Almost 200K miles
-Autometer Cobalt: Boost, EGT, Trans Temp
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post #6 of 30 Old 12-27-2011, 07:44 PM
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Quote:
Originally Posted by powerram250c View Post
Summer driving I am getting 19.3 mpg. That was driving like an old man with a hat. Haven't checked winter mpg yet.
The hat adds +50 HP and about 1-3 MPG


2001 F-250 7.3L Crew Cab 4x4
4" Rancho lift
35" Hankook Dynapro MTs
DP Tuner F6 Stock, 80 Economy, 60 Tow
Isspro EV2 Pyro, Boost, Tranny
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post #7 of 30 Old 12-27-2011, 08:32 PM
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Ive got a dually, 4x4, auto and the best I ever saw was slightly above 15. Normally it sits around 11-13 including towing. I cant wait to see what my DP Tuner will do though when I get it on the 4th. Mods keep coming also so we will see.

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post #8 of 30 Old 12-28-2011, 11:28 AM
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Dually 4wd stick and I've averaged 16.6mpg at 65mph on a 300 mile trip, hand calculated with GPS. Towing a 7600lb RV, I get around 11.5~12 over hilly terrain.
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post #9 of 30 Old 12-28-2011, 02:02 PM
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Winter I get 14-16 and summer I get 16-18. I have kept track every tank. Towing in the summer I get about 14-16 as well.. Mostly highway..some intermittent through town.

Mitch

2006 Ford F-350 6.0 Crew Cab Lariat Short Box./4" exhaust/SCT X4 7015 (White Noise)/Autometer Boost and Fuel Pressure(Strictly Adapter)/Edge Insight CTS2/FICM Repair.com Complete Wire Kit/08+ Rear Differential Cover/B&W Goosneck hitch/Sinister Coolant Filter/High Idle/Blue Spring/Purchased 2/28/2014

2002 Ford F-350 7.3 Crew Cab Lariat Short Box, SOLD 2/24/2014

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post #10 of 30 Old 12-28-2011, 04:45 PM Thread Starter
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Quote:
Originally Posted by carolinaboy02powerstroke View Post
In the winter mpg's will go down due to the additive in the fuel to prevent gelling.

Several factors come in to play with mpg's.

Is it a dually, big lift with big tires, what gear ratio does the truck have? When's the last time the fuel filter was changed? How does he drive, is it mostly city or hwy? I have found the best mileage is by not letting the tach get up above 2,000-2,200rpm when permit-table.

This is just a few things to take into account.
Sorry, It is 3/4 ton 4x4 stock tires and body.. fuel filter,air filter an oil has just been changed with 165,000 miles now.Gear ratio should be stock (3.73?)All stock except the 4" exhaust without cats... He has been babying it around tryn to get better milage.. he has owned it for 3 months now and previous owner said it has always got crappy milage

Thanks

Stock 05 Harley Davidson 4x4 4 door...
afe pro air filter
Chickens one day..... Feathers the next
-Mike
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