Last post on Nov 25, 2013 at 4:52 PM
You are in the Ford F-Series
What is this discussion about?
Ford F-350, Ford F-150, Ford F-250, Fuel System, Fuel Efficiency (MPG), Truck
If you're looking for a place to discuss real world mileage figures for your Ford F-Series pickup, this is the place!
#107 of 155 Re: Moding the Engine. [pjw72]
Dec 12, 2007 (2:02 pm)
I just joined this forum and hope someone can shed some light on Ford F150 fuel economy. I've seen some replies here that sound like they come straight from Ford. I like the one that states the break in period being 18,000-20,000 miles. Hope it's true. I just bought a used F150 super crew with 19,000 miles. I've put the last thousand on myself and as it has been said I drove it like a grandma. At best I'm seeing about 12.5 MPG in town. I am still in denial that this is normal and I should just live with it. I've heard everything from the weight, height, differential ratios and tire sizes being responsible but let's face it guys this is 2007. I've had carbureted cars that didn't have even one computer that got better than this. Hopefully someone can step up and scientifically explain what gives and what if anything can be done to make this otherwise great truck return reasonable fuel economy figures. I don't expect miracles just something around 15 city 19 highway. Thanks for listening and hope to hear some promising suggestions. Dan
#108 of 155 MPG on 05 to 07 6.0L Diesel F350
Jan 20, 2008 (7:12 am)
Am considering buying an 05, 06, or 07 F350 crew, long bed, 3.73 rear end with either 4x4 or 4x2. Live in Dallas and drive 70%/30% mix of city/highway. Tow a 8-11K LB gooseneck on weekends country driving. Does anyone have any personal experience on what kind of mileage I can expect? Thanks!
#109 of 155 Re: Moding the Engine. [germantech]
Jan 22, 2008 (4:30 pm)
City Fuel Econ in an F-150. 5.4L 3V. Realistically?
Not trying to sound like a Jerk here but according to www.fueleconomy.gov, under the new EPA test the 5.4L 3V F-150 should get 12 in the city and 16 on the HWY.
I think the days of using a P'kup for a daily driver but not as part of your job are fast falling behind.
One thing that you can try is getting an K&N Air Filter. http://www.knfilters.com/
#110 of 155 Re: Moding the Engine. [germantech]
Jan 31, 2008 (8:16 pm)
First let me say that I do not show much credance to any gas saving devices. I'm a ASE certified tech but I have found some things that increase gas mileage on my 99 F150. The things that I have found to improove mpg are those that are intended to increase power. The increase in mpg is just an extra. A K&N filter gave about a 1mpg increase. Mixing Acetone with the fuel has shot the mpg way up. Better mpg is noticed with 89 octane instead of cheep 87 octane. Now my F150 has a shell and is loaded with a lot of equipment, and I am now getting 14.8 mpg. Adding 1 0nce of acetone for every 10 gallons of gas and using the 89 octane is when I noticed the improovment in mpg the most. Your mpg should be hire unless you carrying a lot of weight like me. I go through a tank of gas more often than most because I work out of my truck. When I'm driving with a lead foot, I still get 13.6 mpg.
#111 of 155 99-05 F350 DRW Mileage ? Help
Feb 06, 2008 (8:08 pm)
Hello, Just Joined, and I need some help.
What I have now: 1997 Ford F250 SD 4X4, 460 V8 (rebuilt 30K ago), Auto (rebuilt 20K ago), rearend gears Unknown, shortbox, extended Cab, 35" Tires, 6" lift, Airbags. 8-9.5 MPG, empty, loaded, or pulling Horse Trailer with 2 Horses, and loaded with Camping Gear. Paid for.
What I want to do: More Mileage (Hauling Horses to Montana with current Rig is $600 round Trip) Add Camper (can't with Short Box and Pull Horse Trailer, unless I go with small SB Camper), go up to 3-4 Horse Trailer (will add 5000lbs to tow weight). Long box also better for hauling Hay.
What I think I need, but am not sure. 99-05, F350 DRW(?) 4X4 crewcab, not a huge payment. Not sure on Manual or Auto, Gas or Diesel.
I love my current Truck, if it had a long box for the Camper, I would eat the Gas Mileage, but we really need to move to a Camper, and my younger Horse, needs to start going with us. Please give some suggestions on what to look for used and why or why I should just stay with what I have.
#113 of 155 Re: Moding the Engine. [pjw72]
Mar 01, 2008 (6:17 am)
The 10-20K miles for break in, is this for the 2008? I've been told that the V10's gas motors get about 12mpg as my 2008 diesel is getting and with Diesel fuel being an average of .60cents more a gallon ($3.50 gallon in the St. Louis area) we will never be able to say that the Diesel motor & transmission has paid for itself. And what in the world is up with the Diesel prices, is it because of the Iraq War where a lot of diesel is needed to support our military troops?
If this is the SO REASON and the prices will drop back down to being .60cents below gas prices when its over, I have NO problem paying an extra $100 a month in fuel cost over the V10 gas motor if it means supporting our troops to ensure there safety and to protect our shores. (So I will just have to eat at home more often)
#114 of 155 Re: Moding the Engine. [pjw72]
Mar 03, 2008 (8:33 pm)
I purchased my 08 f250 srw 3.73 gears after trading in my 04 6.0L. My dealership told me that the break in period was 10 tanks of fuel! I am at 10k right now, and am only getting 200 - 250 miles per tank full. The cold weather definately brings down the mpg, hoping it gets better this summer.
#115 of 155 Re: MPG on 05 to 07 6.0L Diesel F350 [rodoug]
Mar 06, 2008 (11:48 pm)
Just joined to give my answer to your question. Purchased a 2006 F-350 PSD 6.0 DRW last month. The last fill equated to 21.05 MPG. That was with a refuel on the same pump, same side, facing same direction, with the hold open nozzle clip in the same position. That trip was all highway between 45 and 55 MPH. The truck is a 6 speed manual. I avoided spooling up the turbo as much as possible and coasted when able. No load or tow on that run. The truck has 33,000 miles. This was the extreme to see if I could match other similar claims. However, the worst I managed to get thus far [without a load] was 16.5 which still satisfies me even at $3.50 per gallon.
#116 of 155 Re: Fuel Tank Modifications [superduty1]
May 05, 2008 (12:30 am)
I have the F-350 version and the stock 29 gallon tank was not enough when pulling distance. I add another 25 gallon w/ tool box and run it thru a gravity valve incorporated into the main tank inlet so I would not have to add pump wiring gauge etc..... When main tank gauge moves you know bed tank is empty.
1) I have found BIO diesel cause this valve to stick.
2) If you want to use this tank in winter paint it black or Line-X it to obsorb heat from the sun, or add heater.
The problem is some states don't allow this set up so check first (or who's to know?). The reason the manufactures quit putting bigger or duel tanks in is because people were falling a sleep at the wheel from not stopping on long drives. Hence not liable for law suits of this type.
I stayed with a small tank to allow more use of the bed. found best deal at TSC.