My computer has yet to read above 14.4, but calculating the miles, I am averaging 17.5 - 18.0 highway, and 14-15 city. I'm also curious what everyone wlse is getting. [img]/ubbthreads/images/graemlins/confused.gif[/img]
A 140,000 mile average of 15.2 MPG in 4 years. I have towed about 15K+ at 8.5+ ~ 9.8 MPG. Very happen with MPG and my driving habits.
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2006 Lariat Chrome Edtion Red F350 CC 4X4 Dually w/4:10 Gears Born 04/26/06 w/ color matching speedliner, PCM Reprogramed to Level "L",@ 24,535 miles AMSOIL Front to Back, AMSOIL By Pass Filter BMK-11, Amsoil Coolant Nitrogen in all 6 tires @ 75 PSI W/ 34.2 x 102" wide Coachman Royal TT.
Gone but not forgotten 2001 “X” 7 years / 218K w7.3
I've got close to 70K on my 2001 PSD 4x4 Excursion. Since it was purchased, I've averaged 19 MPG overall. Recently I've slowed it down 5 MPH and drive like I've got an egg under my foot. No more jackrabbit starts or long idle periods. I consolidate my trips and try to avoid short trips when the engine is cold which drags down a good MPG average. Results are 21 MPG average which I'm very happy with. And that's in very mixed driving from wide open to bumper-to-bumper. I commute 100 miles a day and my fuel bill is about $50 per week.
I went from 15 average to over 18 when I got the Edge juice/Attitude combo. That is with GPS and fill up calculations. Mind you that is with 35 inch BFG Mudders. Very happy with that combo.
1996 PSD F-350 crew cab 4x4, AB CODE CALIFORNIA TRUCK, 5 speed,CON-O SMFW modified by Southbend Clutch, ORU Reverse Shackle kit, 4:10, u.s. gear chip, IDM MOD BY ME , down pipe, 4 inch straight pipe, boost and EGT gauges,PRO COMP A/T's 305-70's, Bilstein's, ditched the k&n filter for an open element Baldwin PA 2818, kenwood & polk audio sound system.
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2002 Excursion PSD 4x4 XLT Premium- TN BB 1.0 Turbo , 6.0 IC, 8 inch Sky Jacker lift, FOX shocks with remotes, 35-12.50R17 BFG Muds mounted on 17x10 Boyd Coddington Billet wheels, ORU Frozen rotors, custom hybrid intake, DVD/2 monitors, Billet grill, XM radio, DP Tuner PCM QLJ5/PMT1 combo, Edge Juice/Attitude for gauges.
My overhead computer says something like 20-24mpg most of the time, which is not even remotely correct. The previous owner of the truck tells me that before the programmer was used, the overhead was sorta-accurate.
Driving to and from work, I get 16.0-16.5mpg in the winter and 16.5-17.0 in the summer. I'm assuming the difference between winter and summer is due to the winter-blend thing (my understanding is that diesel #1 is mixed with diesel #2 in the colder months to help prevent fuel gelling). I get about 18ish on long highway trips.
It seems like maybe I get slightly better mileage when using powerservice - maybe 0 - 0.5MPG/tank. Hard to say for sure though.
I can tell you that my mileage does improve noticably after getting speeding tickets (I drive slower for a while). That's about the only thing I've seen that has a direct/significant impact on mileage. There may be something out there that has a big impact on mileage, other than your foot, but I haven't seen it yet.
After all the mods and such, I get about 16 city and on the long cross country hauls from Sacramento to Iowa and back I average about 18 going 75-80 mph. Not bad. I use to have the AFE filter and switched to the AIS Ford heavy duty filter and had no difference in mileage. If I can keep my foot out of it and keep it under 70 I can get 21...but who wants to go 70 in the Nevada desert. This X is so much fun to drive!
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'02 PSD Excursion LTD Ultimate 4X4 Mineral Gray, PSD badges, Banks Exhaust, AIS air filter, DP-Tuner, Fuel mods, V code (2C3Z-5310-HA, AKA 3C34-5310-ADA) and modified F code (6C34-5560-F aka 5C32-5560-FA) springs with Timbren rear overloads, Bilstein shocks, hellwig sway bar, Powerslot Cyro rotors with Hawk LTS pads.
I just did the math going back to when it was new.
Upper comp says higher milage but differances with changes made are about the same.
All these are hand calculated. I travel almost no city stop and go. Mostly trips 100 mile + each way and either interstate of 4 lane where speed limit is around 65 mph.
My average speed I drive is 70 +. I drive it like a small car and am not very good with slow startups. Milages include about the same amount of towing and cargo loads.
From 12 miles through 20,876 all stock. 11.65 mpg.
(overhead comp 14.2)
from 27513 through 37268 with Super chip (various modes.) 13.396 mpg.
(overhead comp 15.8)
no additives.
Hope this helps.
Mesu
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Excursion 2004 4X4 Limited - PUEBLO GOLD - 6.0L T-C Diesel - 5-Spd Auto Trans -AM/FM Sterio In-Dash 6-CD - Rear Seat Entertainment - DVD - 2nd Row -Dual Bucket Seats - PWR HTD T-T Mirrors - 3.73LS Axle - T-Case Skid Plate - Thule Top Rack - SC Tuner
Veh. Built 7/16/03 Eng. Build date 6/27/03 by International - Purchase Date 9/1/03 Milage on date 6/9/04 = 15,000 11/15/04 = 26,890 4/19/05 = 35,639 12/12/05 = 49,810 8/29/06 = 63,750 3/27/08= 100,003 Rancho 9000 shocks F & R.
It is hard to take travel serious when every time you leave home you take an Excursion !
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