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View Full Version : 2011 f450/f550 MPG and payload


shovelracer
06-15-2011, 09:43 PM
We are about to sign for an F450 with the new 6.7 and 4.10 gears we also have the option of going with the F550 with 4.88 gears. Both would be with an 11' rugby eliminator dump. Aside from the obvious payload differences my main concern is MPG. I'll say on average our trips are relatively short with mostly rural county road travel. Towing 7-9k almost daily and when hauling it will be on the heavier side of max. Logic tells me that on average we would be better with the 4.10 gears over the 4.88. If anyone has something similar they want to talk about it would be appreciated. Also I would never overload a vehicle on public roads, but hypothetically what is the true max you can throw in an F450 before it becomes a hazard. For example our F250 is rated for 3K payload, it does just fine with 4.5k, but we have gone as high as 6K for very short trips. Of course never on public roads:) All relative feedback appreciated.

Marek
06-15-2011, 10:13 PM
We have been known to run 20-21k in our 08 450 and it handles it fine. It actually handles weight better then our older 550 trucks

Ramairfreak98ss
06-20-2011, 07:12 PM
We have been known to run 20-21k in our 08 450 and it handles it fine. It actually handles weight better then our older 550 trucks


Honestly either will be fine, if you PLAN to load the truck up to max or overload it, "we all do sometimes knowingly or not", go with the 4.88 gears in the F550. The 550s can also be a 17,900lb if with 4.56s , which is what we have

If your concerned about mpg, stay with lower gears, the new 6 speeds 4.56 is similar to a 5speed 2010 or older with 4.88s.

We have a 06 f350 with 4.30s and it seems like a lot of gear
The 07 F550 with 4.56s seems like a lot of gear but is NICE when fully overloaded with 6 tons of sand or stone, yeah we roll out of the scales at upto 24,000lbs for a 17,900gvw.... that doesnt happen often but i know it can handle it fine, but you feel the brakes are lacking for that much weight.

pinto n mwr
06-23-2011, 06:53 PM
Hear is how to figure a payload...
1. Weigh the truck empty
2. Open the door and read the sticker that say GVWR and take notes.
3. GVWR - empty weight that is what you can haul

If you haul more than that than you are...
1. Illegal weight
2. Probably a road hazard
3. A reason why fines, tabs, insurance.... are expensive

If I were to look at buying a 1 1/2 - 2 ton truck the last thing I would consider is fuel mileage.

my two cents though!

shovelracer
08-08-2011, 08:15 PM
The update:

We got the 450 with the 4.10s. As of today it is getting 15mpg empty cruising county roads, 13-14mpg town empty, 10-12mpg towing 9k town, 9mpg towing 9k in the mountains.

So far it has gone up almost 2mpg since we picked it up. It has 1100miles now. The only time it has gone over 50mph was on the way home from the dealer. MPG went down noticably above 55mph highway.

Our legal payload is 5600lbs

Marek
08-08-2011, 09:19 PM
Did you get 4 x 4 ? Reg. cab or extended ?

all ferris
08-08-2011, 11:04 PM
The update:

We got the 450 with the 4.10s. As of today it is getting 15mpg empty cruising county roads, 13-14mpg town empty, 10-12mpg towing 9k town, 9mpg towing 9k in the mountains.

So far it has gone up almost 2mpg since we picked it up. It has 1100miles now. The only time it has gone over 50mph was on the way home from the dealer. MPG went down noticably above 55mph highway.

Our legal payload is 5600lbs


I have a 2008 f450 and my legal payload is about the same as yours. Mine has been a good truck but seems to be hard on tires. I only got 40000mi out of the first set. Seems like a tire that comes on these trucks should last longer but what do I know.

I also wonder why they would put 6 tires rated at 3900lbs on a truck only rated to haul 16000lbs? And why rate the truck at 16000lbs when it is happy with 20000 - 21000lbs?

ClassicLawnCareInc
08-09-2011, 10:28 PM
I wonder the same thing lol. We drive it around with 19k all the time and its fine.

4 seasons lawn&land
08-09-2011, 11:20 PM
I have a 2008 f450 and my legal payload is about the same as yours. Mine has been a good truck but seems to be hard on tires. I only got 40000mi out of the first set. Seems like a tire that comes on these trucks should last longer but what do I know.

I also wonder why they would put 6 tires rated at 3900lbs on a truck only rated to haul 16000lbs? And why rate the truck at 16000lbs when it is happy with 20000 - 21000lbs?

;) I get 15k out of my 2500 tires...

what are the 550s rated to tow in 4x4 trim?

shovelracer
08-10-2011, 07:55 AM
Did you get 4 x 4 ? Reg. cab or extended ?

Yes, 4x4, regcab but with the 165WB and an 11'dump. After using it, I will likely never go back to 8-9' dumps again.

shovelracer
08-10-2011, 07:57 AM
;) I get 15k out of my 2500 tires...

what are the 550s rated to tow in 4x4 trim?

The 450 is 16k towing conventional, I think the 550 was the same.

4 seasons lawn&land
08-10-2011, 06:57 PM
I have heard it was right around there but didnt believe it. I think my 2500 is rated to to 13 or 14. A 550 should tow twice what a 2500 does.

shovelracer
08-10-2011, 09:02 PM
This is conventional towing. Gooseneck is a different game. 5th wheel is like 24k assuming you have it setup properly.

4 seasons lawn&land
08-10-2011, 10:09 PM
I think the 2500 is 13 k conventional towing

shovelracer
08-13-2011, 08:15 AM
There is a difference though. Towing 13k with a SRW truck and 16k with a heaviler DRW truck is different. The 2500 or 250 or whatever will be pushed all around to begin with unless there is a distributing hitch, which lets face it no one uses. Most of the time though the towing rating is affected by engine/trans/gear combos.

4 seasons lawn&land
08-13-2011, 10:16 AM
problem is still the max legal rating though. If I wanted to tow an 8 ton X Id need a huge truck when I can tow a 5 ton with a pickup or 6 ton with a dually pick up. A 550 could tow an 8 ton no prob but its not legaly rated to which seems silly. If the GVW rating is twice what my 2500 is then the tow rating should also be twice, not 20% more.

PlantscapeSolutions
08-21-2011, 02:41 AM
Do you really want to be buy a Diesel engine in it's first year of production? Ford puts the Cummins 6.7 in it's F650 & F750 for a reason. Get a Ram 4500 or 5500 and you can get Fords top dog engine offering in your truck as well.

Ramairfreak98ss
08-21-2011, 02:11 PM
Do you really want to be buy a Diesel engine in it's first year of production? Ford puts the Cummins 6.7 in it's F650 & F750 for a reason. Get a Ram 4500 or 5500 and you can get Fords top dog engine offering in your truck as well.

LOL no you just didnt :hammerhead:

Marek
11-30-2011, 09:59 PM
Well give us an up date on your new truck. How is it holding up and whats the latest mpg ?

bobcat_ron
12-02-2011, 12:05 PM
My brother' 2008 550 with 4.88 gets average 28 liter per 100 kms, about 10 mpg, his 6.7 350 does only 14mpg empty.
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