'08 Getting Crapy Millage
Senior User
Joined: Jul 2007
Posts: 172
Likes: 0
From: North Georgia
Originally Posted by thunder64ybd
can you put exhaust tips on the new 2008 ford f250 diesel or dose it get to hot?
Senior User
Joined: Aug 2007
Posts: 436
Likes: 0
From: E Washington
fuel mileage???
It would seem that ford needs to look into why so many people are getting such different #'s. Going through this thread it goes from 8 to 26 mpg, that seems like a big problem for ford and the customers. It seems that if we pay this much for the truck that we should get the same #'s in fuel mileage within reason. Just my .02 worth
Senior User
Joined: Sep 2007
Posts: 431
Likes: 0
From: at Work
Originally Posted by Nipperdog
Before you go condeming the engine why don't you find out what kind of MPG it will deliver without the emission controls. I'm sure that Ford would have prefered to build a truck that delivered the MPG of previous non emission engines, if it were legally possible today. You can thank the EPA for your trouble, and the political Nincompoops that YOU voted into office who think they are saving the planet by muzzling the diesel engine. BTW don't home heating systems also burn Diesel? I'm sure they burn as dirty or worse. Maybe we need a DPF on every chimney.
How does ANYBODY KNOW what mpg's 6.4 will get without emissions controls?,,,,you can't test it or run it that way,,,that's BS they would even claim that.
Senior User
Joined: Sep 2007
Posts: 431
Likes: 0
From: at Work
Originally Posted by origcharger
This is what International is saying about the 6.4/ MaxxForce 7;
"New V-8 Platform
"New V-8 Platform
- 80,000+ hours of engine testing.
- 6 million miles of development and validation.
- Outstanding fuel economy, power and performance for your business as well as ‘quiet power’ for driver comfort and noise reduction.
- For city routes, double-digit percentage fuel economy improvement is possible when the transmission and drivelines are optimized."
Senior User
Joined: Sep 2007
Posts: 431
Likes: 0
From: at Work
Originally Posted by theoshin
part of the problem is also the hp/torque race that has occured with the new dz. tune an engine to put out those kind of numbers and your milage will suffer too. i think that plus the new emissions combine to poor fuel economy. interesting that the new duramax seems to be less affected by the changes, at least in highway milage.
Senior User
Joined: Oct 2007
Posts: 156
Likes: 0
From: AKRON, oHIO
Just got baclk from my 4,000 mile trip towing my 40 foot fifth wheel with two Harleys in it......over 26,000 pounds...my 2002 Chevy Durmax Dually got 6.5 at about 72 MPH....going to get a new F450
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Elder User
Joined: Aug 2004
Posts: 932
Likes: 4
From: Edmond, OK
Originally Posted by oilburnr
I think it is more about the emissions than the rising power levels. Example, my older trucks actually got better mileage with a power adder. I think if you are not putting your foot in it, the increased power will improve mileage. They are using additional timing also to increase the power which does generally improve mileage.
timing is retarded to improve the EGR function..... which hurts economy but helps emissions.
An efficiently tuned engine for HP will give better fuel economy if you are not hammering it.
Cross-Country
Joined: Feb 2006
Posts: 52
Likes: 2
Makes one wonder when diesel hits $4.50 a gal(3.99 in West Los Angeles now) how many people are going to remove their stock systems in lieu of a more mileage freindly set up.Currentely there is no annual smog check required for dlesel engines in state.
I know for sure my 6.0 got as much as 20 fwy empty,but claims of those #s for a 6.4 with after market set up is probably a shill post in nature JMHO
I know for sure my 6.0 got as much as 20 fwy empty,but claims of those #s for a 6.4 with after market set up is probably a shill post in nature JMHO
Senior User
Joined: Jan 2007
Posts: 168
Likes: 0
Originally Posted by bnmccoy
Ditto that.... you are correct
timing is retarded to improve the EGR function..... which hurts economy but helps emissions.
An efficiently tuned engine for HP will give better fuel economy if you are not hammering it.
timing is retarded to improve the EGR function..... which hurts economy but helps emissions.
An efficiently tuned engine for HP will give better fuel economy if you are not hammering it.
Elder User
Joined: Aug 2004
Posts: 932
Likes: 4
From: Edmond, OK
I believe the extra cubic inches are more likely to effect in town mileage than highway mileage.
The 6.0 is smaller than the 7.3 yet the 7.3 was considered more fuel efficient by many who owned both. The later generation engine(s) have four valves per cylinder vs. the 7.3 too. I believe it is more about emissions tuning......
IIRC the increase from 6.0 to 6.4 was so the new tighter emission 6.4 could make make up for lost HP from the new emissions standards.
Too small an engine always working harder trying to move large truck, boat, car, etc. can be less efficient than the bigger engine option sometimes.
The 6.0 is smaller than the 7.3 yet the 7.3 was considered more fuel efficient by many who owned both. The later generation engine(s) have four valves per cylinder vs. the 7.3 too. I believe it is more about emissions tuning......
IIRC the increase from 6.0 to 6.4 was so the new tighter emission 6.4 could make make up for lost HP from the new emissions standards.
Too small an engine always working harder trying to move large truck, boat, car, etc. can be less efficient than the bigger engine option sometimes.
Thread
Thread Starter
Forum
Replies
Last Post