Skeena, just passed 1700 miles on my X with 17.2 MPG average since new. I don't dip into the turbo much and 65 MPH on the highway. Probably 70/30 split on city/hwy.
Two roadtrips ago I got 18 mpg at 70 mph with a PPIII, Rotella oil and about 6000 miles on the truck.
Last week coming back from South Carolina, I got just a little over 20 mpg at 72 mph on relatively flat roads with the same PPIII, a boost tube, a brand new Motorcraft air filter and Mobil Delvac 1300 Super oil. (The computer said I was getting 32 mpg!!) The truck turned 10,000 miles on the drive back. I've never towed anything heavier than a pair of Sea-Doos.
I'm not sure if the boost tube or the oil made the difference, but I am definitely happy with that mileage.
I'm eager to see if my city mileage will go up any.
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2001 Black Excursion, 4x4, XLT, PSD, LS, (EBM2), Super-Duty grill, 4" MBRP exhaust, Bilsteins, X-springs, OilGuard bypass filter, 295's, Badges, Suvlights harness, APC headlights, Weatherboots, Centramatics, Clear corners, AIC w/ITP mount, ISSPRO EVs, BTS trans, Open element intake, ATS compressor housing, Thule rack, BD Torqloc, F350 rear blocks, Randy Ellis lightbar with a couple of Lightforce 170s, Front receiver hitch, DP Tuner chip
1975 Ford Bronco, neglected since I bought the Excursion
I don't get it! My wife is the primary driver of our X, she drives verryy easy, we never tow anything, and we get combined city/highway, probably about 60/40, of around 12 mpg. I have manually verified the old fashioned way and it is correct. I read of the mileage some of you get and wonder what is wrong with my engine (I replaced the fuel filter, no help). Any ideas?
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2001 4x4 Diesel Excursion Limited Oxford White, Air Lift rear air springs, 3 A-pillar gauges, Magnaflow exhaust, Bridgestone Duelers 285/75R16
Thanks everyone for the responses - it will be interesting to see a trend line develop and what difference, if any, will become apparent when one uses synthetic oil or aftermarket components.
Cheers!
I've recently joined since I am the owner (PROUD) of a 2001 Limited 4x2. I'm averaging about 19-20 on the highway @ 65 and intown 17-18. Just under 2000 miles thus far. Have experienced no problems todate. Did install a K&N air filter and a bug deflector. Otherwise its stock. Looking at a chip and gauges in the future. it does ride very nicely. Sorta like a Lazyboy on wheels!
Skeena, just passed 2800 miles on my X with 18.41 MPG average since new. I don't dip into the turbo much and 65 MPH on the highway. Probably 70/30 split on city/hwy. I fill it to the lip everytime. Just filled it up today at Flying J and got 863 miles out of my last tank. Each tank has done better! Hopeing to break the 900 mile limit soon! [img]images/icons/wink.gif[/img] [img]images/icons/laugh.gif[/img] [img]images/icons/shocked.gif[/img]
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2001 Black Excursion LTD No Boundries 4x4 PSD, GCF Filters on Lube Oil & Fuel, VALENTINE ONE RADAR, Magnaflow 7.3 Premium, AFE Stage II PG7
Skeena - Welcome to a great site. For your information, the Excursion with the Power Stroke is only available with the 3.73 gear rear end. The only option for the rear end is the limited slip or not.
Have a great day,
John [img]images/icons/smile.gif[/img]
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2000 Excursion Limited PSD 4X4 Dark Satin Green/Medium Parchmant Born 7/00 In-Service 10/00 All Factory Options except Transfer Skid Plate
Zachary - Welcome to a great site and congratulations on your new Excursion. Feel to free to look around and check out the other forums. There is a lot of information out there.
Good Luck and Welcome,
John
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2000 Excursion Limited PSD 4X4 Dark Satin Green/Medium Parchmant Born 7/00 In-Service 10/00 All Factory Options except Transfer Skid Plate
On a recent trip to Jacksonville, Florida from Houston the buggy got 20.2 going and 19.1 coming back. I was in a little more of a hurry coming back to Houston and had a slight head wind. The only mod so far was installing a K&N air filter. The best with the stock filter was 18.5 on the highway.
My X is just about 10K. Bone stock. I drive it to and from work, about 30 miles (hwy) each way. I don't tow anything but haul the wife and a Great Dane with me to work. I average about 15-16mpg at 75-80mph with occassional WFO's.
I also take many over-eager commuters to "diesel school" whether it be from a light or from a roll. I've also been using the A/C quite a bit lately (who hasn't?).
Now, I figure that if I didn't get above 2k on the tach, and reduced wind drag by keeping Oscar's (the dog's) big head in the widow, I could probably improve MPG.
But I'm having too much fun...
[img]images/icons/wink.gif[/img] [img]images/icons/wink.gif[/img]
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'01 X LTD PSD Estate Green >FIRST DIESEL AND LOVIN' IT!!<
You can pick up an instant 1-2 mpg just by verifying your odometer and trip computer [img]images/icons/laugh.gif[/img]
With the 33s I used to run, my odo read 2.4% low (because 33s are taller than stock tires). And my trip computer showed fuel mileage 7.5% lower than reality. So my real mileage was 9% better! [img]images/icons/smile.gif[/img]
Now I'm running 35s and I'll bet real mileage has gone down a little bit with the bigger tires, but the odo and trip computer will read even lower than reality.
Bottom line, you need to fully top up and calculate mileage yourself over several tanks full to get a true reading. Lots of other guys say their trip computer reads low too.
14-16 mpg mixed driving
18-19 at 70mph
19-21 at 55mph
10-12 towing 9,200 lb TT
mods that might affect mpg:
Hypertech PPIII
Dynomax race muffler
The PPIII seemed to help a little, but the mpg improved more significantly when I installed the Dynomax. That improved the towing by 1.5 mpg on same roads, load and weather.
Terry
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2005 E-350 XLT Ext Passenger Van, 6.0 PSD, Power Seat, Keyless Entry, ScanGuage, Great Large Family Rig!
Sold:
2000 EXCURSION 7.3 PSD 4X4, K&N, Edelbrock IAS, ProComp SS, Superchips MT, Dynomax exhaust, Thule racks, Bridgestone Dueler AT Revo 285.
Linear Mode
