2008 F450 w/4:88

Prob 75% city 25%highway. 312 miles, 32.5 gallons. 9.6mpg. (all unloaded)

650 total miles right now.

 

I don't know about 05v10's Bobcat, but mine weighs 6500 lbs before I load any of the several 500 - 1000# implements I would take with me on the 4000 lb trailer , so when I'm pulling a 14000 lb load, I don't care if it's my well outfitted Bobcat or a 5th wheel (the latter which I don't have), weight is weight. Glad to see folks are getting some good numbers with the 6.4 -- we're all pumping blue blood under the skin, and nothing that the competition makes can touch these capabilities!

 

diesel_dan,

I disagree with weight is weight. I think that frontal profile has a lot to do with it too. A 14,000 lb high profile 5th wheel is going to have a lot more drag (those suckers are in excess of 13 ft high and eight feet across) than a utility trailer with a bobcat and tools. I'm not discounting the bobcat, but I think that in a side-by-side test with identical tow vehicles, the guy pulling the bobcat is going to get better mileage than the fiver, not much, a mile or two tops.

 

With a little over 1,500 miles now......The last fill up (yesterday) rendered 11.4 mpg. Mostly 2 lane rural driving 55-65 mph. Based on previous readings I'm guessing my avg is at about 10.8 - 11.1

 

Yeah,
You are right about us 6.0 guys being happy now.

You are wrong about it not making any difference to people that can "afford" a new 6.4. (I can go pay cash for one tomorrow.)

The point is it's up to me to decide if I NEED one and my many past decisions regarding NEED have put me in a position to be able to "afford" one.

So don't make any assumptions that MPG is not important to those of us that can "afford" one.

 

My King Ranch Dually arrived in New Orleans today finally, they are suppose to reprogram it tomorrow and I will pick it up Wednesday. I thought they were gonna do the mods at the plant in Louisville. They have been holding it for 3 weeks now because of this. I will keep you posted as I go on the mileage, wish me luck I guess, really excited and really worried also. has anyone read the manual about what regular diesel will do to it, just go into regeneration more often or totally plug it up? thanks for all the data, it really helps.

 

Probably neither one of us is qualified to argue which one of either a large front/smooth side trailer vs. a multiple (varied) height (read: lots of induced turbulence) trailer would produce a lower drag profile in a wind tunnel -- or better yet, on the road. Suffice to say, it's likely a minimal difference to either side of the equation, vs. the load itself... (my guess is the 5th wheel is more air flow efficient, or why wouldn't planes use this great aerodynamic technology??!)

 

First off, I want to say that I dont own one of these trucks, or plan to (i'm happy with my 7.3). From what I've read in the other diesel forums, don't diesel engines require 10-15,000 miles before they're fully broken in? Its at that point that the fuel milage tends to go up because everything has worn properly and seals better. Maybe at that point, you guys'll get a few more mpg's. Just my 2 cents though.

 

I find it hard to believe you are getting over 10 towing load unless you are going downhill both ways. But if you say it is so, then I believe you. I love the V-10 and think it is a great motor. I have put well over 220,000 miles on the 2 I own and have never spent a nickel on them except for regular maintenance. But I tow a Bobcat on a tandem axle goose neck trailer with some other equipment. Towing here in Southern AZ is mostly flat but there are some good grades here and there, but I also tow up North quite a bit where the grades get steep. Anyways, if I get 6 mpg with the V-10 I am doing good when I tow. I get about 12 unloaded.

 

I may as well chime in here. Weight is not weight. Oh wait, yes it is. Actually, since I tow both a 5er and a utility trailer with a 7800lb Bobcat, +/-2000lb in attachments and about 2000lb in other tools and sometimes a pallet of concrete (3760lbs), I can tell you that it depends in large part on where the weight is on the trailer. If you misload the trailer you could suck the mileage down to 5 in a hurry. My 5er is taller, wider and longer than the utility trailer when loaded, it is no where near as heavy +/-12k tops. But even if I tow a lighter load on the utility trailer I will get better mileage with the 5er guaranteed.

 

Ok guys I never owned a truck in my life first of all and the reason I bought this truck is to so I can buy a fifth wheel toyhauler well I did buy a fifth wheel yesterday and because I have did not put a 5th wheel hitch on my truck yet I ask my friend to lend me his truck I drove form san diego to simi valley the trip is 185 miles each way I got 18MPG going there and after I pick up my toyhauler 12k unloaded brand new 38 feet toy hauler and I got 9.5MPG driving 185 miles back to san diego.
Now his truck is 2007 ford f250 6.0 3.73 4x4 LWB with 4900miles on the odo all these people here that say that there truck (6.0 diesel) get 12,13 and some say 14 MPG on the diesel 6.0 towing 13k or 15k are not telling us the truth.
now my truck is 2008 ford f250 6.4 3.73 4x4 LWB and by the way you can not talk on the phone on his truck because it is so loud it is not funny.
Stop bashing the 2008 ford 6.4 and stop telling people that your 6.0 gets better MPG because it is not true I think my statement is about as good as maybe 1MPG difference in terms of MPG that the 6.0 gets better than 6.4 and that is because my 6.4 has very low miles on it so when it get 5000miles I will report.
I am getting the fiver put on this week and I will let you now what happens after I pull this monster with my 6.4.
do not quote because I did tow my self this is not the newspaper this is not your beer body telling you this is me towing and driving unless you are going to tell me that his truck has something wrong with it and by the way that is not true his truck runs fine.
I am tired of you people not tell the truth about MPG it is pathetic.
if I made a mistake in writing this story SORRY my english is not very good but I do speak and write 5 langages in case you want to quote that to. I am european that has lived 20 years in the USA and loved every minute of it to.

 

drisschoufa: you're coming off a bit strong on this -- I'm certainly not trying to bash the 6.4 and I hope it turns into a great success for Ford (and you). This is far from my 1st truck and 1st diesel. I was actually waiting for the new 6.4 to come out prior to deciding to get the '07 with the 6.0 -- mainly due to the unknowns of the emissions stuff they were putting on it. I'm happy with my decision and truck and I truly hope you are with yours.

I think you'll find the folks on this site have a lot of patience, help to offer, and most are quite truthfull. Sure there's a few that might pump up the truth a bit, but really, try not to get too defensive -- you'll find mileage reports all over the map, even with the same truck. I suggest you do some more reading on mileage folks report and you'll see the myriad of factors that can affect mileage, and certainly one 185 mile tow in your new truck-owners life does not mean the other folks are all lying. Factors such as: truck options, engine health, winter vs. summer fuel, grades, wind, speed, driving style, air temp, tire pressures, loads and loading, aerodynamics, and on and on, all affect towing mileage. Once you get your trailer hooked up and some miles and trips under your belt, you'll get a feel where your truck and setup will usually average out at.

I bet that new truck of yours will be a towing monster when you hook 'er up! Good luck to you as well...

 

to drisschoufa
Calm down i do not know what you are putting people down for. And before you brag about knowing five languages, master this one,English!!

 

I was telling my opinion because before using my friend 2007 6.0 I was under the impression that people were telling the truth about how great the MPG was on the 6.0 and what suprised me is after driving one for the first time and seeing the MPG I was wow wow wow where the high MPG that everyone is talking about that is the reason I wrote that story.
I was so surprised that I could not wait to post that remarque keep in mind when someone tell you a story over and over and over and over you will begin to believe that story but when experience it and you find out it was not true you get on the deffencive accordingly.
I was not attacking anyone here I was telling my point that these people are not telling the truth about there MPG.
by the way I took my truck today for the recall and I told him my story and he said people that claim that these truck 6.0 and 6.4 are getting 13,14 and some say 15MPG pulling 12k to 14k pound are full of shxxxt because it is impossible and I agree with him.
DAN I was not addressing you and if you thought that I am SORRY I am not here to make you or anyone upset but I expect people to be truthfull because a lot of people will buy another truck because of what they read here not knowing it is not true.

 

Wait, your trying to say the truck is so loud that you cant talk on your phone. BS!!

If your truck is that loud then it has issues and needs to get fixed.