anyone know?
Elder User
Joined: Dec 2006
Posts: 725
Likes: 0
From: Gettysburg, PA
Yes, My buddy has an stock 03 V10 and basically same truck as mine(minus the fact I have the 5.4) He gets 9-10 mpg consistantly. Im getting 12-13 now. Hopefully soon Ill be getting better mileage when the weather gets warmer. My buddy bought a ranger to drive to work everyday and lets his F250 sit.
Mountain Pass
Joined: Sep 2006
Posts: 227
Likes: 0
From: Wyoming
The short answer is that there is not much difference in mpg between the two - assuming similar trucks. Come over to the V10 Forum and do a search. You will find a lot of good information on this topic from some very knowledgeable folks.
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
Likes: 20
From: Washington State
In certain situations it is just a matter of simple physics to determine that the 6.8L will use more fuel than the 5.4L.
Strange thing is...it's only in certain situations. Unloaded highway, same gearing...obviously it takes less fuel to feed the smaller engine.
Things change when you're towing or loaded though. Same with taking off and driving in the city. Since the V10 makes more power for each given RPM versus the V8 it actually requires LESS use of the "go-pedal".
9-10 average in not indicative of a well tuned, properly maintainted V10. 12 is more the average range.
Strange thing is...it's only in certain situations. Unloaded highway, same gearing...obviously it takes less fuel to feed the smaller engine.
Things change when you're towing or loaded though. Same with taking off and driving in the city. Since the V10 makes more power for each given RPM versus the V8 it actually requires LESS use of the "go-pedal".
9-10 average in not indicative of a well tuned, properly maintainted V10. 12 is more the average range.
Posting Guru
Joined: Jun 2006
Posts: 1,623
Likes: 2
12-14 consisantly??? if you have a 38 gallon tank thats means it could be anywhere from 456 miles to 532 miles...thats not very consistant...unless you meant 12 (city) 14 (highway)..thats like saying "my truck consistantley makes 300-375 hp " o well maybe im missing something...lol im just bustin em man
Posting Guru
Joined: Jun 2006
Posts: 1,623
Likes: 2
on a lighter not my dad gets around 10 and i get around 12...hes a cc daully v10 and im a sc f250 5.4...their are to many variables when deciding mpg...THE BIGGEST IS THE PERSONS DRIVING HABITS...you can have 2 identicle trucks and one get way worse mpg because of the persons driving habits...what about gears...how well the truck is running...is #1 driving with the ac blasting. or is #2 driving at 75 mph with the windows down...(resistance is probably the largest factor...) caps and tonnaue covers makes a difference...their are to many factors..bank on the fact that you will get any where from 8-13...now you know that either way both are going to get crap for mileage...but then again my dad has seen as low as 8 unloaded and i have never seen less than 10.4
Trending Topics
Postmaster
Joined: Dec 2003
Posts: 3,130
Likes: 3
From: Massachusetts
JEEZ!!!!
I failed to type in 50/50 mixed driving. It does vary in that range. Depending on what time of year (winter/summer bled fuel), did I use 4wd for any length of time, did I get mad and some ricer and show them what 10 burning and 4 turning is all about!, Did I drive to wark at 70 instead of 60 mph?
Many variables.
I failed to type in 50/50 mixed driving. It does vary in that range. Depending on what time of year (winter/summer bled fuel), did I use 4wd for any length of time, did I get mad and some ricer and show them what 10 burning and 4 turning is all about!, Did I drive to wark at 70 instead of 60 mph?
Many variables.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Elder User
Joined: May 2006
Posts: 616
Likes: 0
From: Tax Happy Hanover Pa
My F350 SC 4X4 V10 w/ 4.30 gears and 285's got 12.3mpg average, mostly country roads and two lane, 55-60 mph top speed.
A guy I work worth has an F250 CC 4X4 V8 w/ 4.10's and 295's. He averages 13.5mpg and drives the same roads as I do.
Both of these averages were hand calculated. You decide.....
A guy I work worth has an F250 CC 4X4 V8 w/ 4.10's and 295's. He averages 13.5mpg and drives the same roads as I do.
Both of these averages were hand calculated. You decide.....
Posting Guru
Joined: Jun 2006
Posts: 1,623
Likes: 2
Originally Posted by boxcar1974
JEEZ!!!!
I failed to type in 50/50 mixed driving. It does vary in that range. Depending on what time of year (winter/summer bled fuel), did I use 4wd for any length of time, did I get mad and some ricer and show them what 10 burning and 4 turning is all about!, Did I drive to wark at 70 instead of 60 mph?
Many variables.
I failed to type in 50/50 mixed driving. It does vary in that range. Depending on what time of year (winter/summer bled fuel), did I use 4wd for any length of time, did I get mad and some ricer and show them what 10 burning and 4 turning is all about!, Did I drive to wark at 70 instead of 60 mph?
Many variables.
Senior User
Joined: Jul 2005
Posts: 188
Likes: 0
In my experiance no. I have had 3 a 99, 2001, 2003. All pretty much the same truck including gears but 1 was a 5.4 and two a v-10. THe v-10's have averaged 13.5 and the 5.4 was no better. I have also had two diesel supers too and could not get over 15 from them.
Elder User
Joined: Dec 2006
Posts: 725
Likes: 0
From: Gettysburg, PA
two words
Originally Posted by boxcar1974
My 2003 V10 with headers and free flowing exhaust with 3.73:1 gears get 12-14 mpg consistantly.
Last edited by Robs06SuperDuty; Apr 3, 2007 at 10:07 PM.
Elder User
Joined: Dec 2006
Posts: 725
Likes: 0
From: Gettysburg, PA
Originally Posted by Monsta
9-10 average in not indicative of a well tuned, properly maintainted V10. 12 is more the average range.
short trips....
my buddy drives about 7 miles to work everyday so that definately kills it, same reason my mileage sucks and i drive 5 miles to work everyday. short trips are a bitch on MPG.