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Ford F-Series Real World MPG Numbers

wahooowahooo Posts: 1
Please give mileage figures for the 2005 F350, 6.0 Diesel, Crew Cab, DRW, 2WD, 4.10 LS rear end. Thanks


  • vricevrice Posts: 1
    2005 F350 Lariet Crew Cab, 6.0, 4x4 SRW, 3.73 gears. Second tank, 18 MPG.. less than 1000 miles..What a truck!!! Pulles like a bandit.. I am going to order exhaust and chip soon I think..
  • PFFlyer@EdmundsPFFlyer@Edmunds Pennsylvania Furnace, PAPosts: 5,808
    How is your F-Series truck treating you at the pump?? Are you beating those EPA estimates in the real world?


    PF Flyer


    Pickups & News & Views Message Boards


    Moderator - Hatchbacks & Hybrid Vehicles

  • mullins87mullins87 Posts: 959
    I get around 18 mpg highway, empty under 70 mph. Over 70 mph drops me to 16.5 mpg. Loaded with my Jeep on a 16' flatbed, probably grossing about 11,000lbs, I'll get around 14 mpg. Pulling a larger trailer, grossing over 15,000lbs, the mileage drops to around 11 mpg. This truck currently has 165,000 miles on her.
  • xwesxxwesx Fairbanks, AlaskaPosts: 8,269
    Those #'s are very consistent with what my grandfather gets with his '97 350 7.3L 4x4 (non-dually). The most significant drop in mileage comes @ speeds over 70mph (which he does frequently). He has noted that his 35' dual-axle 5th wheel trailer nets him worse mileage (11-13 mpg depending on winds) than his 40' quad-axle boat trailer for his 32' cabin cruiser (~14 mpg), even though the boat weighs better than 3x as much. In his words, "the boat pulls much easier."


    In my opinion, these are all very good #s considering I get about 11 mpg with my '69 Chevy 307 running empty and drops fast when I pull a load, and I would be crawling if I pulled that boat trailer while he pulls it at 65 mph even up some sizable grades.
  • I drive this thing like a baby, rarely gunning it and easy on the breaks and still can't crack 15 mpg even on the HWY with nothing in the bed.
  • I have a 2004 Ford F-250 Crew Cab 6.0 diesel. It has 3.73 gears, 35" tires and a 5 1/2" lift on it. My average gas mileage is 13.7 highway, 11 city and 5.6 towing. When I took into Ford they told me that the towing numbers were really low, and chances were something was wrong. When I picked it up they told me that NOTHING was wrong and that the mileage is what it is. Has anyone heard of this before?


    Even before my modifications, the best I got was around 14 highway. There is only 6700 miles, and the service guy said to wait until it breaks in, and then the mileage should start to go up??
  • driftracerdriftracer Posts: 2,692
    calculating correctly - did you install a new speedo gear to correct for the 35" tires? Those are 3-4" taller than stock, throwing off your speedometer by around 10-12%, depending on what tires came stock (235/85-16, 265/75-16, or 265/70-17) - you're traveling a lot more miles than your odometer is recording...


    Secondly, if you're like me, you're not driving like a grandma - like me, you've probably done Banks or Bully Dog exhaust, and love to romp is to make it make noise...that flat KILLS your mileage.


    Combine incorrect calculations with less than conservative driving, and I'd say you're doing pretty good.


    The towing mileage? Those 3.73 gears are too tall to try to tow with 35" tires - you need 4.11s or a little higher to adjust to normal operating ranges (engine and transmission) - you're working them pretty hard with the 3-4" taller tires and no change in gear ratios.
  • I thought that you no longer had to change speedo gear to adjust for larger tires. All the dealer needed to do was program in a new value for the larger tire circumference, and then the computer adjusts the speedo and odometer accordingly for the new number of revolutions per mile.
  • driftracerdriftracer Posts: 2,692
    can't do that for non-OEM tires, you need a piggyback ECM to do that, and a laptop - I would seriously question the ability of any technician (in a dealership) to be able to do this - having that adjustable software actually voids your warranty...


    Even if the recalibration was done, that's still a lot more work for the engine and trans, especially when towing - just because the speedometer may be accurate, it doesn't account for the extra weight and rolling diameter your engine has to push around, especially when towing.
  • mullins87mullins87 Posts: 959
    I'd say you're probably doing about as well as can be expected considering your current setup. I agree with the others that you need to regear to 4.11's. If my "off the cuff" calculations are correct, 4.11's should put you pretty close to factory gearing.


    I have a Jeep Wrangler with the little 2.5L 4 cylinder, 4.10 gears and 31" tires. To the best of my knowledge, it has never broken 15mpg.
  • Just bought my first 2005 F-250 Crew Cab Diesel with the 6 1/2 foot bed. I really enjoy my truck. I just wished it came if a larger fuel tank. Has anyone out there replaced their stock fuel tank with an after market one? I've seen one on the internet that holds 46 gals. Any advise?
  • just how many gallons does your current tank hold?


    when I bought my '04 F150 it had a 35 gallon tank (factory upgrade) as did many trucks on the lot.


    that's plenty big for me
  • connon1connon1 Posts: 15
    04 crew cab with short bed holds 28 gallons. When I got mine I dont believe there was another tank option. I would rather have the larger tank.BTW, paid $2.16 per gal. for last tankful here in NJ.Paying that much almost seems like I have a bigger tank.
  • I did a couple of things on mine (2001 5.4L 4X4) that helped a bit. First go get a K&N filter, not a huge help, but it is noticeable. Second get something over the bed,(dropping the tailgate doesn't help) I put a soft tonneau(?) on mine. Don't forget to check tire pressure as well. Driving from Utah to Washington state, I managed 19 mpg on one tank, though 17.5 to 18 seems the norm (HWY). It still sucks in town, 12.5 approx. Something else to remember as well, the new design, while cool, added around 500 pounds to the truck; this can't help milege either. Take heart though, every Dodge truck owner I've ever talked to has it worse.
  • larcklarck Posts: 22
    I have an F-150 with 3500 miles on it. I get 12.6 to 13.5 in mpg in town and 15.3 mpg on the highway. I think this is in line with what most people are getting ??
  • I have the same problem with my 2005 f-350 crew cab. I get 12-13 mpg normal driving. The best I got was 16.5 when I took a trip to Chicago from California. I only have 8200 miles and am wondering some of the same things. I just met another guy in my town who has an '05 and is only getting 13-14 also. My dealer just told me "You should be getting better than that." Hopefully somthing can be done because I feel cheated, due to misrepresentation when I was buying.
  • Wrightman,
    F350 CC and you're getting 12 -13 mpg, that's really not all the bad. You don't say what engine or whether you're a 4x4, or 4x2. or long bed or short bed. You're a lot heavier, and have a bigger payload than the F150 yet you're getting comparable mileage! Still quite painful though when you have to fill up.
  • explorerx4explorerx4 Central CTPosts: 9,452
    i had a '00 expedition rated at 12 city 16 highway. usually got 12-13, unless a long trip then 16-17. that's about right.
  • spoomspoom Posts: 85
    '03 F150 4x4 w/5.4L No matter how hard I try, I get about 12mpg in mixed driving and maybe 17 in mostly hwy driving: (
    Have about 11k miles on it and running full-synth 5-20.
  • I have an '03 F350 SuperCrew KingRanch 6.0L Powerstroke with 19K miles on it, with a fiberglass rear lid. I average ~17-19mpg unloaded hwy and ~12-13mpg hwy pulling a 27' travel trailer. Unloaded City is ~16 mpg.

    I've been pleased with these numbers, and I can say I don't baby it, but I also don't jump all over the gas either.
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