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Discussion Starter #1
I am new here, But I have driven many fords, I am looking at getting a 2003 7.3L auto with 78k on it. I know many guys say they get upward of 24-26mpg but I am wondering what real people get with theirs? what should I expect and what can I do to get better mileage out of it?
 

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I be Architect'n
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351 Posts
Max of 18-20 on highway w/o too many mod's. You can get, maybe, 24 if you have a 6-speed 2WD and do alot of aero. work. 13-15 around town is typical.
 

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24-26 can be done, but it takes a lot of work and a lot of discipline. It is my no means the norm. I average 15 mixed driving...
 

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I have a 2001 crewcab flatbed with a 6 speed manual. I get 12-14 most of the time. Most trailers dcn't make a difference. My trips are mostly 20-40 milee each way and 60 mph max.
 

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Slow 6.0
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i average 15 usually, i also drive like an ***. but i wouldnt expect 24-26 thats really high.
 

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I get any where from 15-18 mpg on each tank. I have seen people who get into the mid 20s by using an economy tune with mods like new air intake exhaust and other mods like propane or water methanol injection. Also if you keep your rpms below 2000 at all times you can get from 18-20 mpg and you are not wearing out the engine as fastly. You can also reduce excess weight and put on a bed cover.
 

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My brother just got a 01 2wd extended cab 6 speed that is bone stock and is getting around 21mpg with it. he is getting ready to do some mods to inprove on that such as a chip, exaust, intake, and 3.08 gears.
 

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I average between 16-17 mpg per tank but I usually have my foot in it more than I should.
 

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TDG Mafia Member # 37
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When I was running Jody's (DP Tuner) 80 hp econo tune, unloaded on the highway keeping it below 2000 rpm I could get 24 mpg. The norm though was usually between 21 - 22 mpg. I could also get 18.5-19 aound town driving. I do not get those numbers with the 60 hp tow or the 120 hp fun programs though. I truly think Jody's 80 hp econo tune is the best tune I have run, it was fast, but economical, and while not a towing program it seemed to work better for my loads than the 60 hp tow program has done for me. I also got a best of 17.7 pulling my 5th wheel on the highway with that tune, but I can get 15.5 -16 with the 120hp tune pulling the same 5th wheel. When I get my injectors and big oil, and I 'll have a need for changing my F5 chip programs then I'll get the 80 hp econo tune back. Gene :mafia
 

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i get any were from 13-16 depnding on how i drive
 

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I get 15 to 17 depending on how I drive. But my truck is a little older.
 

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if you are truely looking for MPG, look into the propane kits. I am sure that there are a few people running pane here. I haven't crunched the numbers to see how much you really are gaining seeing as you have to buy propane as well. 26 MPG sounds good, but you have to factor in the cost of propane.
 

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16 - 18 MPG at 2000 +/- RPM (mostly +) going to California and back.
 

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16.5 on the 75hp tune and 3.73 gears. I get on it almost every day at least once. I love watching the smoke pour out. I did baby it for one tank in the 50hp tune and it got 16.7 on the way to Chicago and back running right at 2050-2100 rpm @ 70mph
 

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I just made a 2500 mile trip-ran 79 mph on cruise control most of the way- i got 20.5-02 f250 4x4 with 285/75/16. Mixed driving 15-17, I called a superchip tech he said if your not towing put it on high perf(120hp) for the best mileage
 
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