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Excursion 7.3 4WD - what kind of MPG are you getting?

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  #16  
Old 10-15-2010, 09:55 AM
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Wow, how do you guys get such great mileage? My '01 has averaged 14.1 (hand-calc) over the seven years and 57K I've owned it. It's job in life is to go to home depot and towing my 4Runner to Moab, which means several tall passes and 75mph speed limits.

Mark
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  #17  
Old 10-15-2010, 11:21 AM
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Mine probably averages around 18-19 hwy, but I also run about 78mph across the state and had 285's for tires...
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  #18  
Old 10-15-2010, 12:13 PM
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Quote:
Originally Posted by rcboats1 View Post
18-20 city, 22-25 highway as long as I stay below 70 (normaly set cruise at 68). 15-18 towing 6880lb travel trailer.

01 w/ GTP38R, Tymar intake, 4" turbo back, Riffraff IC boots, Edge Evo II, Sinister tank/pre pump kit, other stuff too...
That's impressive! You get better towing a TT than I do on the hwy. I need to get me one of those upgraded turbos if its gonna do all that LOL
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Old 10-15-2010, 12:35 PM
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The big key for me has been to keep my speeds down. If I start driving over 70 I notice a big drop in MPG.
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Old 10-15-2010, 03:48 PM
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I have 285's. Best mileage I've ever seen, hand calculated and ground speed verified by GPS, was just shy of 19MPG.
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Old 10-16-2010, 09:52 AM
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Quote:
Originally Posted by Joe28443 View Post
I must have issues, I have a 2wd and see 15 around town and maybe if I am lucky 19 on the hwy @ 60 mph. If I hook up my TT (6000) I see 10 and 11. Maybe I need to go back to stock

That doesn't sound right at all. I as well have a 2wd and have seen as high as 24. Lowest I have gotten was 14.5 pulling my 24'TT and boat at the same time @ 70mph.
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Old 10-16-2010, 10:29 AM
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Quote:
Originally Posted by Snowseeker View Post
That doesn't sound right at all. I as well have a 2wd and have seen as high as 24. Lowest I have gotten was 14.5 pulling my 24'TT and boat at the same time @ 70mph.
The only 7.3-powered Excursion I'd heard of that achieved that kind of mpg was very highly modified to do so, and driven with an egg on the accelerator. What mods have you done to yours to get that kind of mpg (especially towing)? I'm sorry, but I find it highly irregular, and I'm sure even Ford would like to study yours if it is actually achieving that kind of efficiency.
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  #23  
Old 10-16-2010, 10:56 AM
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I installed a heater plug, thats it. All stock.

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  #24  
Old 10-16-2010, 01:19 PM
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16 to 17 freeway, 11-12 when towing. I'm running 315's. No Mods. How do you guys use your overdrive? I only kick into od when 55+. what should I do to improve the economy to the numbers I'm seeing on this thread?
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  #25  
Old 10-18-2010, 09:28 AM
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mileage

03 Limited 7.3L
I get 15-17 around town depending on hills and force on the right foot. 21-25 on the highway (same as above) 19ish towing my 25 foot boat. I have a chip, modified intake and exhaust.
Eric
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  #26  
Old 10-18-2010, 10:40 AM
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Quote:
Originally Posted by Rushmore X View Post
Mine probably averages around 18-19 hwy, but I also run about 78mph across the state and had 285's for tires...
That's exactly what I am getting but with stock tires. If I can keep it under 70 I can break 20mpg.
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Old 10-18-2010, 11:35 AM
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Here's my fuel log on Fuelly.com. Includes all of my notes. Haven't been driving the Excursion much since getting a Jetta TDI and then the Excursion being down after the tornado.

The X Fuel-up Log | Fuelly
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  #28  
Old 10-18-2010, 01:15 PM
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01 7.3 4X4. Mods in sig. As it is, i average 14-15 mpg in daily driving. I just returned from a trip to Gatlinburg TN and recorded 18 mpg with varying speeds from 60-80 mph. Those are overhead lie-ometer readings. I dont bother with really recording it as I never seem to get the same amount in the tank due to foaming. For that matter, it is so much better than my last X with the V10 that I do not really care what the actual number is. Right now my fuel gauge is a little above half with 340 miles (not corrected for tire change). I am sure the overhead is optimistic. The Nittos seem to have taken a chunk out of the mileage in both increased size and rolling resistance, but they look and perform good.
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  #29  
Old 10-24-2010, 03:47 PM
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I have calculated my first couple of tank fulls and I appear to be geting about 12-13 around town and on a trip to Tucson I got 21.
______________
2001 Excursion 7.3 4X4 Stock except for K&N filter
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  #30  
Old 11-08-2010, 02:32 PM
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I just calculated my last tankful and it was 13.8 around town driving and some highway- no towing, overhead computer said 14.8. I drive pretty light on the pedal, running our own homebrew B100

I was hoping it would be higher....
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