im not an expert in the 6.4 emissions crap but all ive seen is people getting 8-10mpg and from what it sounds like its all the stuff they are using to make it "cleaner", to me it seems if the epa scapped all the stupid egr, dpf, and such, the trucks would get better fuel economy, thus burning less fuel, and poluting less, so we have less emissions at the time of the tests coming from our pipes, but if it takes 100 gallons to go to the grocery store thats not really efficient now is it. couldnt the 6.4 be just as effiecient as the 7.3s were if it were "back in the day"? it makes more power but its get a much better fuel system 2 turbos, it seems like it should cancel out? just my $.02 maybe someone can shine some light. thanks all, i just needed to vent for a minute
fuel econ ?
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Lock you doors, close the curtains, unplug the telephones and internet. I bet the EPA is already triangulating your position. My God man, have not not heard of the "Black Helicopters"? Don't be suprised if you have a knock on the door very soon. Someone trying to sell you on sealcoating the drive. Don't be fooled, it is the EPA. You have touched on a very well kept secret. Good luck you poor guy. Use more fuel to cut down on emissions, drilling for and refining more fuel produces more emissions. Ever see a cat chase it's tail?
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[ QUOTE ]
Lock you doors, close the curtains, unplug the telephones and internet. I bet the EPA is already triangulating your position. My God man, have not not heard of the "Black Helicopters"?
[/ QUOTE ]
Yadda, yadda, yadda....
Making fun of the guy may make you feel better about your own purchase, but he's not wrong. The 6.4L costs a bunch more, and is less efficient. Sure, there are power, refinement and luxury ammenties to consider, but if cost/mile is a factor to you, the '08's are a tough sell.
Maybe the real government conspiracy is to get your to part with more of your hard earned cash? /ubbthreads/images/graemlins/wink.gif
- Jay
Lock you doors, close the curtains, unplug the telephones and internet. I bet the EPA is already triangulating your position. My God man, have not not heard of the "Black Helicopters"?
[/ QUOTE ]
Yadda, yadda, yadda....
Making fun of the guy may make you feel better about your own purchase, but he's not wrong. The 6.4L costs a bunch more, and is less efficient. Sure, there are power, refinement and luxury ammenties to consider, but if cost/mile is a factor to you, the '08's are a tough sell.
Maybe the real government conspiracy is to get your to part with more of your hard earned cash? /ubbthreads/images/graemlins/wink.gif
- Jay
I am pretty upset at the mileage as well. Now , with 1000 miles on mine..driving very easy, I am getting 11-11.5 ( hand calculated ) in mixed town/hiway driving..unloaded. My old 7.3 got 16-17 in similiar driving conditions. I keep looking under the truck for a leak? Am hoping the towing mileage will be better proportionally( 7.3 towing vs non towing} ...but who knows.
Is Ford actually working on this....or should I just resign myself to this for a long time?
Is Ford actually working on this....or should I just resign myself to this for a long time?
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1,704 Posts
Good Grief "Diesel Jay", cool your jets. I was not making fun of the man or his post, I was agreeing with him. You think I am happy paying $2.85 a gallon for diesel, to fill a truck I (hope) returns 12mpg? I think most of this EPA driven crap is job security for government beaurocrats. I don't want to blow black clouds of soot into the air, though. I think man made global warming is a marketing tool made up by loons like Al Gore who is driven everywhere in a convoy of fuel slurping SUV. There is money to be made stuffing this garbage down our throats. Something is not right when to produce the (clean) exhaust , more fuel is burned. Oh, and by the way, I love my new F-450, 12mpg or not.
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Something does not sound right about your mileage that you state. I hand calculated mine this morning. I topped off my tank after taking delivery yesterday right up to the neck, Drove a bit over 100 miles and refilled this morning. I am right at 11mpg on a 450 with 4:88's and only 130 or so miles on the odometer. You should be getting better than that.
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Thanks, but my blood pressure's fine. Personally, I find this all a sort of entertainment. /ubbthreads/images/graemlins/wink.gif
- Jay
- Jay
I am reasonably careful when I calculate mileage...my computer thinks I get 11.8 or so..so I think I am in the ball park. Around town, driving slow, I bet there is not a lot of difference between 3.73's and 4.88's...cruising at 75..probably a lot more difference.
I never had a mileage computer on my 7.3...so maybe I should just shut this one off....but mileage seems to go straight to hell in very slow driving..idling etc. Also in my one highway trip so far...pushing a very strong headwind at 80 mph..it was terrible. If I zero the computer out, set the cruise at 50-60...indicates 14-15..but I never really drive that way.
In a few weeks I hook up my 5th wheel and hit the road....then we will see!
I never had a mileage computer on my 7.3...so maybe I should just shut this one off....but mileage seems to go straight to hell in very slow driving..idling etc. Also in my one highway trip so far...pushing a very strong headwind at 80 mph..it was terrible. If I zero the computer out, set the cruise at 50-60...indicates 14-15..but I never really drive that way.
In a few weeks I hook up my 5th wheel and hit the road....then we will see!
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3000 miles on mine it's one month old and I am getting 11-12 MPG every day driving. I have 4:30s and a heavy foot but it is the same foot that drove my 2003 6.0 w/ 4:10s and 1999 7.3 w/ 4:10s and they got around 15-16 MPG. Towing (see sig) with the 6.4 I'm around 8 MPG. But I still wouldn't do anything different this truck puts a smile on my face every day.
[ QUOTE ]
I am pretty upset at the mileage as well. Now , with 1000 miles on mine..driving very easy, I am getting 11-11.5 ( hand calculated ) in mixed town/hiway driving..unloaded. My old 7.3 got 16-17 in similiar driving conditions. I keep looking under the truck for a leak? Am hoping the towing mileage will be better proportionally( 7.3 towing vs non towing} ...but who knows.
Is Ford actually working on this....or should I just resign myself to this for a long time?
[/ QUOTE ]
Are your trucks IDENTICAL? Same gears, same trans, same tires, same body, same weight? Now are they the same POWER factory stock? Did you modify the 7.3 any to get better performance?
I am pretty upset at the mileage as well. Now , with 1000 miles on mine..driving very easy, I am getting 11-11.5 ( hand calculated ) in mixed town/hiway driving..unloaded. My old 7.3 got 16-17 in similiar driving conditions. I keep looking under the truck for a leak? Am hoping the towing mileage will be better proportionally( 7.3 towing vs non towing} ...but who knows.
Is Ford actually working on this....or should I just resign myself to this for a long time?
[/ QUOTE ]
Are your trucks IDENTICAL? Same gears, same trans, same tires, same body, same weight? Now are they the same POWER factory stock? Did you modify the 7.3 any to get better performance?
Old truck was lighter..supercab instead of crew. Both 3.73 rears, etc. 7.3 was bone stock. Sure there is a power difference...but one would think going slow..which requires little power would result in close to same economy. Obviously there is something else going on...emissions etc. I am curious if the mileage when towing heavy seems better...i averaged 9-12 towing my 5th wheel...with the 7.3
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334 Posts
It'll be awhile before I can figure out the mileage in my truck. Sure I would love to get great mileage from my truck but I didn't buy it just for that reason. I bought it cause I love the quiet engine,mirrors,tailgate step,bed extender,and other great features it has.It says in the Ford owners manual to put at least 1000 miles on it before you start to calculate the mileage.Guess I have a ways to go.
/ubbthreads/images/graemlins/grin.gifActually so far I'm delighted at fuel mileage of F450. Even in town 15 mpg is possible with light foot. If you can keep the truck rolling and avoid stomping the throttle the milage is amazing for such a heavy truck.
/ubbthreads/images/graemlins/shrug.gifI would not even want to consider driving in rush hour or downtown in a major city. With constant stop and go traffic the mileage drops off a cliff.
F450 towing #5,000 Streamlite TT over Pachinco Pass was 10 mpg.
/ubbthreads/images/graemlins/shrug.gifI would not even want to consider driving in rush hour or downtown in a major city. With constant stop and go traffic the mileage drops off a cliff.
F450 towing #5,000 Streamlite TT over Pachinco Pass was 10 mpg.
Just a note to all I had mine in service yesterday(3500 miles)... I have 4.10s in a 350 super crew. Tech explained to me the difference in 4.88 vs 4.10 is tire size. 450s have 19" rims vs 17"on 350s, with same tranny and increaced tire size fuel econ shoud be about the same. However my concern to him was the lack of fuel enonomy. he explained to me that there is is a break in period in the computer in the truck requiring more fuel for lubrication for break in. This program is supposed to be erased somewhere between 3000-5000 miles. then fuel economy will start going up. after that time if your fuel doesn't increase then they can reprogram the computer. Hope this is the truth as if its not then I will go back to chevy with an average of 24mpg. cut my losses and move on.
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1,326 Posts
[ QUOTE ]
he explained to me that there is is a break in period in the computer in the truck requiring more fuel for lubrication for break in. This program is supposed to be erased somewhere between 3000-5000 miles. then fuel economy will start going up.
[/ QUOTE ]
That would certainly be a creative approach. Next time, ask him what training materials/SSM/TSB/PCED/manual outlines this strategy. In other works, make sure it wasn't invented over happy hour.
- Jay
he explained to me that there is is a break in period in the computer in the truck requiring more fuel for lubrication for break in. This program is supposed to be erased somewhere between 3000-5000 miles. then fuel economy will start going up.
[/ QUOTE ]
That would certainly be a creative approach. Next time, ask him what training materials/SSM/TSB/PCED/manual outlines this strategy. In other works, make sure it wasn't invented over happy hour.
- Jay
[ QUOTE ]
I have 4.10s in a 350 super crew. Tech explained to me the difference in 4.88 vs 4.10 is tire size. 450s have 19" rims vs 17"on 350s, with same tranny and increaced tire size fuel econ shoud be about the same.
[/ QUOTE ]
Your Tech is wrong about the 4.88 vs 4.10 being tire size. The rear end differential is what makes a truck a 3.73, 4.10, 4.30, or 4.88. Tire size does have an influence on what RPM's a truck is running at, but not near the influence the rearend has.
In reference to the smaller tires making the 4.10 behave like a 4.88:
My 4.88 with 19.5 inch tires is running at 2000 rpm at 55 mph. I would bet a 4.10 with 18 inch tires is around 1700 rpm at 55 mph.
I have 4.10s in a 350 super crew. Tech explained to me the difference in 4.88 vs 4.10 is tire size. 450s have 19" rims vs 17"on 350s, with same tranny and increaced tire size fuel econ shoud be about the same.
[/ QUOTE ]
Your Tech is wrong about the 4.88 vs 4.10 being tire size. The rear end differential is what makes a truck a 3.73, 4.10, 4.30, or 4.88. Tire size does have an influence on what RPM's a truck is running at, but not near the influence the rearend has.
In reference to the smaller tires making the 4.10 behave like a 4.88:
My 4.88 with 19.5 inch tires is running at 2000 rpm at 55 mph. I would bet a 4.10 with 18 inch tires is around 1700 rpm at 55 mph.
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22 Posts
[ QUOTE ]
/ubbthreads/images/graemlins/grin.gifActually so far I'm delighted at fuel mileage of F450. Even in town 15 mpg is possible with light foot. If you can keep the truck rolling and avoid stomping the throttle the milage is amazing for such a heavy truck.
/ubbthreads/images/graemlins/shrug.gifI would not even want to consider driving in rush hour or downtown in a major city. With constant stop and go traffic the mileage drops off a cliff.
F450 towing #5,000 Streamlite TT over Pachinco Pass was 10 mpg.
[/ QUOTE ]
Well I would like to hear about towing the Moble Suite. You are 500 lb heaver than my Alfa. I have 4.30 and am getting between 13.5 and 14 mpg empty. Just got to 1000 mile mark over weekend have not pulled yet.
/ubbthreads/images/graemlins/grin.gifActually so far I'm delighted at fuel mileage of F450. Even in town 15 mpg is possible with light foot. If you can keep the truck rolling and avoid stomping the throttle the milage is amazing for such a heavy truck.
/ubbthreads/images/graemlins/shrug.gifI would not even want to consider driving in rush hour or downtown in a major city. With constant stop and go traffic the mileage drops off a cliff.
F450 towing #5,000 Streamlite TT over Pachinco Pass was 10 mpg.
[/ QUOTE ]
Well I would like to hear about towing the Moble Suite. You are 500 lb heaver than my Alfa. I have 4.30 and am getting between 13.5 and 14 mpg empty. Just got to 1000 mile mark over weekend have not pulled yet.
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