'08 Getting Crapy Millage
#61
11-07-2007, 03:48 PM
Senior User
Join Date: Jul 2007
Location: North Georgia
Posts: 172
Likes: 0
Received 0 Likes
on
0 Posts
#62
11-07-2007, 03:55 PM
Trailering
Join Date: Nov 2007
Location: Usa
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
#63
11-07-2007, 05:26 PM
Senior User
Join Date: Sep 2007
Location: at Work
Posts: 431
Likes: 0
Received 0 Likes
on
0 Posts
#64
11-07-2007, 05:31 PM
Senior User
Join Date: Aug 2007
Location: E Washington
Posts: 436
Likes: 0
Received 0 Likes
on
0 Posts
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
#65
11-07-2007, 05:32 PM
Senior User
Join Date: Sep 2007
Location: at Work
Posts: 431
Likes: 0
Received 0 Likes
on
0 Posts
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.
#66
11-07-2007, 05:33 PM
Senior User
Join Date: Sep 2007
Location: at Work
Posts: 431
Likes: 0
Received 0 Likes
on
0 Posts
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."
#67
11-07-2007, 05:38 PM
Senior User
Join Date: Sep 2007
Location: at Work
Posts: 431
Likes: 0
Received 0 Likes
on
0 Posts
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.
#68
11-07-2007, 05:50 PM
Senior User
Join Date: Oct 2007
Location: AKRON, oHIO
Posts: 156
Likes: 0
Received 0 Likes
on
0 Posts
#69
11-07-2007, 05:58 PM
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.
#70
11-07-2007, 07:07 PM
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
#71
11-07-2007, 07:43 PM
#72
11-07-2007, 08:11 PM
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.
#73
11-07-2007, 10:13 PM
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