jad0620, you need to put your right foot on a diet and lighten it up. I averaged 8.7 MPG for 2990 miles pulling a 9000 pound trailer along flat highways and up and down mountain passes.

Hey guys I agree that MPG is not real good with the V-10 But the fact is if you have a 10,000 square foot house you cant complain about the cost of heating it :'( YOU HAVE A 10,000 SQUARE FOOT HOUSE!!! And the same goes for us I get around 10MPG with a 2002 F-250 CC SD 4x4 3.73s and thats the way it is I HAVE A V-10!!! Now Im not trying to start anything but their are hundreds of posts on MPG and they all say the same thing. We injoy and reserve the rite to pull 10k trailers up hill bolth ways and all the while passing someone we have to stop at the pumps !!
I dont know thats just my opinion and Ive been told to keep it to myself from time to time so feel free :-X22
Take Care and enjoy
JT

foot off the gas
 

I have been building a house for a guy in Victor ID so i drive from Alpine Wy through Jackson and over Teton Pass (10% grade ) I am getting 13.3mpg, the computer said 13.3 so I did the math the next two fill ups and believe it or not 13.3&13.5. I drive 55-62mph not 65-70 .Also I have been putting in premium fuel since that pinging drove me nuts. Well it doesn't ping at all anymore. Not bad for a 99 250 with 295/75/16 tires. Quick question does anyone know if the newer style pull out cup holder fits in my 99?and do the fog lights fit in the 99 holes ? i see the light switch pulls out for the fogs if so wher could i get them thanks Rob

Wow, I pull a 4,200 lb. boat all over the Idaho hills at 70 mph and average a bit over 11mpg. The worst I ever got was with the camper and boat into a head wind and got 9. 70 and just about floored in 5th gear.

I run 35's on my 7500lb V10 F350 with a heavy right foot more often that not and I pull a trailer 9 times out of ten with a total truck and trailer gvw between 16-2000lbs and I averaged 10.4 mpg in the last tax year. I am running 4.30 gears. The only performance upgrade is a custom loud dual exaust. :)

I have a 99 v10 reg. Cab long box with 147,000 and an 8" lift with 37 inch tires that generally gets between 10&11 absolutly love the truck.. And at the same time i have a 06 psd dually with the same lift and tires, i only get 1 mpg better with the diesel and the warranty ford is so chicken **** about their 6.0 diesel warranty mine has 51000 on it and a blown motor ford is trying not to warranty total p.o.s. So stick with the v10 all the way

Welcome to the forums strokr :-X25

However be carefull about digging up old posts. This one has been dead for 5 years :-tap

F-350 Crew V-10
 

I considering buying an F-350 V10 CC non-dually. What I've seen is that about 10-15mpg is going to be expected on freeway driving if you don't get stuck in traffic. Few question: First, what is the typical longevity of a V10 as compared to saw a 7.3L Diesel? Someone mentioned removing spark and injector wires on a couple or four cylinders to get better mileage. So second question, has anyone tried this? Is that bad for the rig? Thinking about firing order I would think it would cause problems since the it would not have the added power to rotate at certain angles. Uneven wear maybe and possibly even engine block issues based on heat or lack of expected heat expansion on cylinders not firing.

thats about what I get under towing in hills.

haha, just saw the age of the thread...

Longevity wise, if you take care of them, they last up into the 200K mile mark easily.

As for removing COP or injector wires to improve MPGs, don't do that. The pumping loss of compressing air without producing power will make it a wash.

We had someone here a couple of years ago go and try to induce the "limp" mode where the V10 runs on only 5 cylinders when it gets too hot, thinking it would make his mileage better. We never heard back from him, and I'd think we would have if it did anything.

running a V10 on 5 cylinders? WOW, If I said what I thought about that you would have to edit my post to clean it up.

I think they'll last longer than that... i currently have 160+ on my 01 and don't see it dying in the next 40k - I could be wrong, but my gut feeling is that this thing will 300k without a problem. At the rate I'm going, I'll know in about 1.5 years.

BTW, I typically get 10-12 mpg city and 14-16 on the highway. I've found I get my best hiway mpgs running at about 68 mph where the RPGs are just at 2000 (using cruise control). Towing - pulling my 7700# TT, wife, 2 kids and the pug, 2200 miles from NC to Texas I averaged 9.8, with a hi of 10.5 and low of 7.8 in the mountains.

Thanks guys! Appreciate you opening up the old thread for a sec.