02' 7.3 9MPG, Is this right?

[Melon]

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

[carolinaboy02powerstroke]

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.

[jesilvas]

Not right depending on factors as already stated. Many things to check to see if anything else is wrong.

[Dasaliac03]

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!

[powerram250c]

Summer driving I am getting 19.3 mpg. That was driving like an old man with a hat. Haven't checked winter mpg yet.

[93_zj]

Originally Posted by powerram250c

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

[kbieber8]

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.

[ttyR2]

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.

[thebierguy]

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.

[Melon]

Originally Posted by carolinaboy02powerstroke

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