03 Excursion what mileage should I expect - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 12 (permalink) Old 12-12-2010, 01:07 PM Thread Starter
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03 Excursion what mileage should I expect

I recently purchased a 03 Excursion 7.3, 4x4, 4" lift, 35" tires. It was set up for search and rescue so between the front bumper and winch plus the roof rack set up my millage blows. I drove it back from TN to VA and averaged 12 per gal, it has an ATS 2000 propane system but after reading all the poop about them I'm not sure if I want to use it. It also came with an old edge tuner 2004 ? I'm using the tow mode now and it seems to have helped some. Truck only has 80k on it and runs out well but could use some HP help for sure, I'll be ordering a DP tuner any recommendations would be great. I don't want to come off like I'm crying about the mileage I love the truck and will live with it, I just want to be smart about any improvements I make.
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post #2 of 12 (permalink) Old 12-12-2010, 01:20 PM
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Re: 03 Excursion what mileage should I expect

My 2000 gets about 13-16. That's was with the 35". After dropping to 33" it's around 13-18. The right foot makes the most difference
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post #3 of 12 (permalink) Old 12-12-2010, 01:29 PM Thread Starter
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Re: 03 Excursion what mileage should I expect

Nice looking rig, I'm going to pull the BF mt off and switch to some at's and see if that helps some. The DP tune should help also, not sure what to do with the propane kit.
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post #4 of 12 (permalink) Old 12-13-2010, 03:08 AM
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Re: 03 Excursion what mileage should I expect

Given that your Ex has 4x4, an automatic, big tires, a lift and the aerodynamic characteristics of an Amish barn, 12 MPG is about par.

The tuner may make it more fun to drive but don't expect any huge improvement in MPG.

2000 F-350 SC 4x2 6 speed
3.08 gears Gear Vendor Overdrive
Slammed 4"
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315,000 miles
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post #5 of 12 (permalink) Old 12-13-2010, 03:23 AM
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Re: 03 Excursion what mileage should I expect

man I've been searching all over the us for an 02 or 03 7.3 ex with that kind of mileage and they just arn't out there and the few I have found they want 20-25k for them!
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post #6 of 12 (permalink) Old 12-13-2010, 03:35 AM
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Re: 03 Excursion what mileage should I expect

I had propane on my obs. It gave a little mpg gain but after you figure time and hassle just wasn't worth it. I didn't like the fact of an intercooler full of propain if it ever got hit.
Hey Stang. I'll sell you my ex for 20-25k
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post #7 of 12 (permalink) Old 12-13-2010, 03:51 AM
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Re: 03 Excursion what mileage should I expect

Quote:
Originally Posted by Rodknocker View Post
I had propane on my obs. It gave a little mpg gain but after you figure time and hassle just wasn't worth it. I didn't like the fact of an intercooler full of propain if it ever got hit.
Hey Stang. I'll sell you my ex for 20-25k
I do like your color combo but that's too high for me!
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post #8 of 12 (permalink) Old 12-13-2010, 07:13 PM
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Re: 03 Excursion what mileage should I expect

Ive got an 03 w/ the 7.3 on 35s and around town in the summer we got about 11.5, wife does ALOT of short trips around town, befor the lift we got about 12.5 I hvaent had it on any trips yet for high way but Im HOPING for 16. I just got a water/meth kit to see what that does plus I can buy meth for under $2 this winter summer should be under 1.50. I also am looking at putting lp on but a kit called the Diesel Magnum(Im a Dealer). I see good gains with it on ag tractors, about $15 an hour on combines and upto $25 on a 15L cummins. If your going to pull the lp off I might be interested in the tank, if its a liquid withdraw tank. Hope this helps.

2003 Exursion 7.3 diesel exhaust, intake, ts chip, banks exhaust housing, big head actuator all sittin on 20s w/ 35s.
1989 F350 460 propane, 4inch lift 39.5s
1988 bronco ii 2.3 turbo motor on propane

Last edited by fordman2121; 12-13-2010 at 07:24 PM. Reason: reword
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post #9 of 12 (permalink) Old 12-22-2010, 04:51 AM
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Re: 03 Excursion what mileage should I expect

the best we ever got was 16.6 in an 01

2002 f-250 7.3 ex cab automatic, 4'' turbo back magnaflow exhaust. tonneau cover. SOLD
2011 f-250 6.7 Lariat fx4 with lots of extras!!Sold
2011 Screw Ecoboost 4x4 with ALL the options


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post #10 of 12 (permalink) Old 12-22-2010, 09:11 AM
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Re: 03 Excursion what mileage should I expect

This is my data...
The X (Ford Excursion) | Fuelly

wildstang3, I would like to sell my Excursion so I can get back into a van. PM me if I can help.

Dave
2005 E350 6.0PSD
2003 Excursion Limited 4WD 7.3PSD - Sold
1996 E350SD dually 7.3PSD - Gone!

2002 VW Jetta TDI - stock
2007 Escape Hybrid
1999 Kaw KLR650 - 17/42 gearing
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