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Real life MPG of F250/F350 with 5.4L

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Old Jun 8, 2004 | 06:51 PM
  #16  
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n578md
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From: Allen, Tx
I think I know why some people (myself included) say that they got 20 MPG with the 5.4L on an F250. When I first got my truck, I was getting between 12 and 13 mpg in town and 18 and 20 mpg on the highway with the stock 265/75R16 tires, one time I even got a little over 22 mpg! Wow! That's great except it's not true because the speedometer on my truck was off at least 3 to 4 mph at 60 mph according to those road side radar units so the odometer was indicating more miles than I actually drove. When I put on 33 x 10 tires on my truck, the speedometer is now about 1/2 mile an hour off. The result is that the odometer is a lot more accurate and I get between 16 and 18 mpg on the highway and about 9 to 11, maybe 12 in town. And that's with a reg cab, 4x2, 3.73LS, 6-speed manual, no load and driving no faster than 60 MPH! (After all, it says F250 on it and not NASCAR Craftsman Truck series.) So real life with accurate speedometer/odometer: 11 city and 17 highway are my averages.
 

Last edited by n578md; Jun 8, 2004 at 07:32 PM.
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Old Jun 8, 2004 | 08:33 PM
  #17  
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From: Close to Mr. Anderson
ford Hauley davidson

anyone know what kind of milage these things are getting? naturally aspurated and SuperCharged? also what gear ratio/s do they come with?
 
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Old Jun 9, 2004 | 12:02 PM
  #18  
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From: NJ ... the garbage state
in this continous argument about fuel economy, no one ever mentions their altitude or location in the country, which could have a great effect on the numbers. I have a 250 5.4 4x4 x spring, and pulled over 16.5 on a trip down to nc from jersey. I was opperating at near sea level (heck, the drive through the outer banks down to avon was like 40+ miles cruising alongside the ocean dunes) , so probably optimal conditions as far as height. this is also the reason out jersey tracks (atco raceway and englishtown raceway park) are often the fastest tracks in the country. If i had driven at a nicer speed and less like a jerk, and had cruise control to keep speed more consistent, and even better yet, had a lower 2wd truck, i wouldnt not be surprised at all to see 18-20 mpg. as far as the speedo is concerned, i was reading close to the three other trucks we were cruising with, all relatively new various makes (explorer, durango, another super duty but diesel 350, ...)

just some of my thoughts to make the matter even more confusing

i love my super duty, didnt buy it to expect the best fuel economy, as as far as the 5.4, since i only tow at most 1/5 of the time, it has more then enough power for me, and pulls my car trailer without much work. sure, the diesel or v10 will tow it faster, and would work maybe a little less hard, but i am happy with my choice/purchase. I see tons of vans and super duties every day with 5.4s hauling cargo towing trailers and working their buts off day in and day out, and loving it.

(BTW - normal stop and go driving to work i get between 12 and 13.5 vs the 11.5-12.5 i use dto get my with my 351W bronco on the same commute, depending on how many traffic lights i hit that week)
 

Last edited by iskybantilus; Jun 9, 2004 at 12:13 PM.
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Old Jun 9, 2004 | 03:38 PM
  #19  
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From: Florida Parishes, LA
I get between 11.5-13 in stop and go Houston traffic. If depends on how big a jerk I want to be. I drive from Houston to Austin, Dallas, and Baton Rouge on a regular basis and get between 14-15 on those trips.
 
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Old Jun 11, 2004 | 09:55 PM
  #20  
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From: murphy nc
just bought truck. 2000 f250sd 5.4L 4.10 rear 5 spd man 34500 mi got 15 mpg columbus ohio to murphy nc. no cruise control. empty truck.
 
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Old Jun 19, 2004 | 07:59 PM
  #21  
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2003 f250 SD standard cab5.4 automatic and 4:10 gears. I also have 305 70R 16 tires and 4000 miles. On a recent highway trip, i averaged about 15mpg at 75 mph, with a light load in the bed.
 
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Old Jun 19, 2004 | 08:28 PM
  #22  
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From: Lloydminster
2004 f250 reg cab 2wd auto about 16 highway, maybe 17 if you really go easy on it, but it is usually loaded up with tools and parts so that may have some effect on it.
 
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Old Jun 20, 2004 | 02:53 PM
  #23  
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From: edgewood,nm
F350sd screw,4x4,man hubs,2002, auto, 4.10's,wife driving=13-14 mpg.
 
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Old Jun 20, 2004 | 09:22 PM
  #24  
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From: Long Island
2002 F-250 SuperCab 4x4 5.4

10 to 13 mpg around town. Depends if I'm beating it that day

15-16 on the highway avg speed 70-75. Have gotten 17 If I keep it under 65
 
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Old Jun 28, 2004 | 01:14 PM
  #25  
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From: virginia
2004 F350 CC LB 4X4 Auto 3.73 I get 10 around town and about 13 hwy this truck is way too heavy for 3.73s if you can get the 4.10s
 
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Old Jul 1, 2004 | 08:24 PM
  #26  
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From: Cincinnati, OH
I have 2004 XLT F250 3.73 4x4 CrewCab and I do 90% Town and 10% highway and in town I get approx 10-13 and 14-16Highway if I keep it around 2000 rpm.

Does anyone know if a chip makes a difference?
 
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Old Jun 23, 2020 | 08:05 PM
  #27  
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2008 F350 4.88 gears and 37's

Hey guys, I know this thread is super outdated but I’m just looking for answers here. Like the title says, I have a 2008 F350 SD on a 6 inch lift with 37’s and 4:88 gears. Now I’ve read the thread and I’m wondering how in the world y’all get that kind of mpg? As of right now I’m getting 7.8mpg and my truck is also tuned. Any input is greatly appreciated, thanks I’m advance.
 
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Old Jun 25, 2020 | 11:27 AM
  #28  
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6" lift + 37" tires is your answer. These trucks have the aerodynamics of a brick.
 
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Old Jun 25, 2020 | 03:16 PM
  #29  
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2008 F350 4.88 gears and 37's

Originally Posted by z31freakify
6" lift + 37" tires is your answer. These trucks have the aerodynamics of a brick.
yeah you’re right. I just figured with the hearing and tuning it would be back to stock mpg. I also have a P0446 code showing for my truck, has anybody had issues with their 5.4 and that code and what the problem was. Thanks in advance
 
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Old Jul 1, 2020 | 07:53 AM
  #30  
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I have an 08 F250 SD 5.4 completely stock and I'm getting 11-13 mpg. You pay a big price in MPG for the big lift/tires/gears.
 
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