Excursion fuel mileage - Ford Powerstroke Diesel Forum
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post #1 of 9 Old 02-21-2012, 09:26 AM Thread Starter
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Excursion fuel mileage

What's the stock fuel mileage average for an excursion?

I calculated 17.1 out of my 6.0L during a 12 hour stint on I-65 south between Indiana and Florida.

How does that compare? Is that high enough to assume my truck has been tuned? Is it in the stock range?

Is there any viable reason to believe that the Excursions get better mileage than the pickups with our 6.0?

Thank you in advance.

Purchased Jan 2012: (Shakedown's Over:May '12 Update)

"Project: Betty" (Bam-Da-Lam) : Installed : WeatherTech Mats/Vents, Edge Insight, Uni 78LT, Yakima 66" bars (2of6).

Short List (ToDo): 5" Exhaust, High Idle, Flush & Filter, Pyro/Fuel PSI addons for the Edge, Blue Spring, Oil Cooler, EGR Bulleproofing,

Upcoming Hutzpah: Ranch Hand, Aluminess, ProComp, MoMo, Nitto.

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post #2 of 9 Old 02-21-2012, 02:43 PM
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mileage

that sounds about right with ours. It is a stock 05 model. I get 20+ if i stay below 65 or 2,000 rpm. Once i cross 65 or 2,000 it starts dropping off.
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post #3 of 9 Old 02-21-2012, 05:07 PM
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I had calculated it on a round trip from Atlanta to Nashville and got 19.033 on my truck completely stock. That was with me running 80 mph most of the time, traffic permitting.

2003 Excursion Limited 6.0 2wd
Transmission built by Ace Transmission Repair / ECM tunning by Quick Tricks / FICM tunning by Power Hungry Performance / No Limit Fabrication Coldside Intercooler Kit / Performance Machine MFG EGR Delete / Performance Machine MFG Coolant Filter / GoGo Diesel direct clutch solenoid / AFE Stage II Intake / Ford Blue Spring / 6.4 Banjo Bolts / Zoodad / 1.5" front sway bar by Hellwig / Ford 30mm rear sway bar
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post #4 of 9 Old 02-22-2012, 06:46 AM
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Wow... I can't get anywhere near that mileage. I get about 16.5mpg running 70mph (64indecated @1780rpm). This is driving only highway from Houston to Lubbock. Mostly flat but some hill country...

04' EX 4x4 Limited, 6" ProComp suspension, Warn heavy duty front bumper with M15k, 84" Safari rack, MT 36/15.5/16 on MT 12/16's, 4" MBRP turbo back exhaust with 5" tip, Edge CTS Evolution monitor, STCx3 Extreme Street tuner, Blue fuel spring, ARP head studs, EGR delete, Coolant filter, 6.4 banjo bolts, Garrett PowerMax Turbo...
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post #5 of 9 Old 03-08-2012, 02:34 PM
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I calculate 16.4mpg around town. Not sure on highway. I figure 16 in town and it's gotta be better on the highway. Last time I checked highway mileage it was around 19MPG. That was before new FICM so I'm sure it's slightly better now.
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post #6 of 9 Old 03-10-2012, 07:23 AM
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My Ex used to get as high as 18.5 mpg with stock tires. Now it gets about 16 with 4.5" lift and 35's cruising 75-80.


2003Excursion 4x4 Eddie Bauer 6.0
Edge Insight CTS, Autometer Fuel Pressure Gauge w/Strictly Diesel sending unit hose, ELC, Sinister Coolant Filter, F650 dash conversion, High Idle mod, Donahoe Racing 4.5" lift, LT315/75R16 Toyo Open Country MT, Viair, Salvaged oil-rig horn
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post #7 of 9 Old 03-10-2012, 09:00 AM
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I did a 760 mile round trip from San Fran to LA and back and got 17.2mpg there and 16.4 mpg back so an average of about 16.8 combined in my 4x4 with a 4" lift and 33" ProComp tires.

FYI, don't rely on the mileage computer in your Excursion. Some of them are notoriously optimistic. I calculated mine by hand and it was only off by about .35 from the trip computer but other's have seen variations as much as several mpg.

Stock 2wd should do even better.
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post #8 of 9 Old 03-10-2012, 11:00 AM Thread Starter
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I hand calculate mine at every fill up. I keep a pad and pen in the door.

Purchased Jan 2012: (Shakedown's Over:May '12 Update)

"Project: Betty" (Bam-Da-Lam) : Installed : WeatherTech Mats/Vents, Edge Insight, Uni 78LT, Yakima 66" bars (2of6).

Short List (ToDo): 5" Exhaust, High Idle, Flush & Filter, Pyro/Fuel PSI addons for the Edge, Blue Spring, Oil Cooler, EGR Bulleproofing,

Upcoming Hutzpah: Ranch Hand, Aluminess, ProComp, MoMo, Nitto.

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post #9 of 9 Old 03-10-2012, 05:41 PM
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I get 15 around town, and 18-22 on the highway, depending on speed. I've gotta go 55 MPH to get 22 MPG. I make 360 mile runs on I35 for work periodically and averaging 70 MPH I usually get 19.5-20 MPG.

2005 Excursion Limited 6.0L 2wd
Atlas 40, Bulletproof EGR cooler, coolant filter, 6.4L banjos, Cat coolant, Gogo direct solenoid, 7.3 fan clutch. Otherwise, all stock.
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