Sticky: What Kind Of Mileage… - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 98 (permalink) Old 12-05-2011, 09:41 PM Thread Starter
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Sticky: What Kind Of Mileage…

One of the most common questions on all of PSN is: “What kind of mileage are you getting?” or “What kind of mileage should I be getting?”

Having seen literally thousands of these on the Nation and the old Ford-Diesel.com, my short answer is “13-16 MPG.”

Your mileage may vary. What are the variables?

The biggest variable is truck configuration. I’ll post a base configuration and options that add or reduce MPG. All are going on either my own experiments or the overwhelming majority of posts people have made on the subject.

All MPG figures assume an empty truck, driven at the posted limit. One-third city/suburban, one-third, two-lane state roads, one-third Interstate driving. Flat terrain. Year round averages.

Base configuration
7.3, 6.0, 6.4, or 6.7 engine or any Cummins engine in a Ford truck
ZF6-650 transmission
Super Cab Single Rear Wheel
3.73 gears
OEM Rubber
Open bed, tailgate up
18 MPG

MPG Modifiers
4x4: Subtract 2.0 MPG
Automatic: Subtract 1.0 MPG
Regular Cab: Add 1.0 MPG
Crew Cab: Subtract 1.0 MPG
Big Tires (bigger than 31.7” OD): Subtract 1.0 MPG
Lift: (3” or greater): Subtract 1.0 MPG
Dual rear wheels: Subtract 1.5 MPG
Open bed, tailgate down: Subtract 1.0 MPG
Flush top cap: subtract 1.0 MPG
Tonneau cover (full length, soft or hard): Add 1.5 MPG (over open bed)
Aerolid: (very rare): Add 3.0 MPG (over open bed)
3.55 gears: Add 1.5 MPG
3.08 gears (no longer available): Add 2.5 MPG
4” front/6” rear slam (not available for 4x4): 1.0 MPG
203 degree stat (7.3 only): Add 0.5 MPG

So, if you have a Ford diesel, SC, SRW,4x4, automatic, big meats, and a 4”
lift you should expect (18.0-2.0-1.0-1.0-1.0) = 13.0 MPG
Margin of error: Plus or minus 2.0 MPG

There are occasional exceptional trucks. I know a guy in hilly Cincinnati, who drives his SC,SRW, 6-speed, 4x4, big tires & 6” lift and a flush cap loaded to the gunwales with work equipment and somehow gets 21 MPG. No, I don’t know how and neither does he. On the other hand, there is no shortage of guys on this board that get less than 11.0 MPG.

Yes, Dodges and Chevy diesel get a little better mileage. They are lighter than the comparable Ford truck and weight matter in MPG. The very common Fummins conversion gets about the same mileage as the International and Ford diesels.

So, if you get 11 MPG or less, maybe we can help. If you get over 22, we wanna hear what you’re doing right. But if your 4x4 automatic with the big tires is getting 14, please stow it. We’ve heard it all before.

2000 F-350 SC 4x2 6 speed
3.08 gears Gear Vendor Overdrive
Slammed 4"
Rugged Air Dam
315,000 miles
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post #2 of 98 (permalink) Old 12-05-2011, 10:19 PM
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Re: Sticky: What Kind Of Mileage…

Cool write up

06 f250 w/ sct tunes from Gearhead
2"leveling kit w/ 350 blocks in rear
5 inch straight pipe
s&b intake
arp head studs
full egr delete
oil bypass
155/75 injectors
64/71 non vgt

Just bought-97 f250 ext cab long bed
Looking for Dana 60 front axel

RIP MAXINE
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post #3 of 98 (permalink) Old 12-05-2011, 11:08 PM
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Re: Sticky: What Kind Of Mileage…

ok thats good to know bout time we got a sticky thread for mpgs im at 15ish so guess i should be happy im in the middle.

E99 F-350 4x4 auto, intake, ts chip gauges sold!

Late 99 F-250 4X4 auto, stage one full force injectors, 07 front end conversion, 20' alcoas, 05 interior. sold!

03 F-350 4X4,6speed,38R,gauges,5in exhaust, bellowed up pipes, 07 front end, 200/30sticks, chip, lots of gauges! An some other things
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post #4 of 98 (permalink) Old 12-06-2011, 12:57 AM Thread Starter
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Re: Sticky: What Kind Of Mileage…

Do you want to do better?

2000 F-350 SC 4x2 6 speed
3.08 gears Gear Vendor Overdrive
Slammed 4"
Rugged Air Dam
315,000 miles
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post #5 of 98 (permalink) Old 12-06-2011, 12:59 AM
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Re: Sticky: What Kind Of Mileage…

yes sir!!!

E99 F-350 4x4 auto, intake, ts chip gauges sold!

Late 99 F-250 4X4 auto, stage one full force injectors, 07 front end conversion, 20' alcoas, 05 interior. sold!

03 F-350 4X4,6speed,38R,gauges,5in exhaust, bellowed up pipes, 07 front end, 200/30sticks, chip, lots of gauges! An some other things
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post #6 of 98 (permalink) Old 12-06-2011, 01:43 AM
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Re: Sticky: What Kind Of Mileage…

even tho im getting 15 moneys very tight an im doin every thing i can to get good mpgs only thing i wont do is seal my truck an get a fukin priuse

E99 F-350 4x4 auto, intake, ts chip gauges sold!

Late 99 F-250 4X4 auto, stage one full force injectors, 07 front end conversion, 20' alcoas, 05 interior. sold!

03 F-350 4X4,6speed,38R,gauges,5in exhaust, bellowed up pipes, 07 front end, 200/30sticks, chip, lots of gauges! An some other things
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post #7 of 98 (permalink) Old 12-08-2011, 03:40 AM
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Re: Sticky: What Kind Of Mileage…

Getting about 10-12 , deffantly some room for improvement

1997 F-250, D60, 8in lift/38s, OUO ladder bars, BTS, Spearco 6.0 IC, SRP 1.1, Irate 468 turbo, Dyno proven tunes, P.I.S 300/200s, ARPs/910s/Smith bros push rods, A1000/sump.

[email protected] on 38s
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post #8 of 98 (permalink) Old 12-12-2011, 01:52 AM
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Re: Sticky: What Kind Of Mileage…

You mentioned elsewhere that factory tow mirrors vs. paddle mirrors has a significant mpg effect. Can you please modify the original list to include the mirror option?

I'm liking the cost effectiveness of the tonneau cover. Not much else will get you 1.5 mpg for so cheap.

2000 F350 SRW, 4wd, CCSB, PSD
Lowered rear end to F250 height, 4" exhaust w/ muff, foil delete, AIH delete, Ford AIS intake, tru-cool trans cooler, autometer under dash pod and gauges, Mile Marker hubs, 04 headlights, soft tonneau

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post #9 of 98 (permalink) Old 12-12-2011, 10:22 PM Thread Starter
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Re: Sticky: What Kind Of Mileage…

I think I started a thread on this a while back. For me, the paddles got me a 1.0 MPG improvement over the TTs.

2000 F-350 SC 4x2 6 speed
3.08 gears Gear Vendor Overdrive
Slammed 4"
Rugged Air Dam
315,000 miles
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post #10 of 98 (permalink) Old 12-26-2011, 01:21 PM
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Re: Sticky: What Kind Of Mileage…

Good write up, I've been looking for something like this. I live in the Cincinnati area and get about 11 in the city. I just did a run down to NC and got 15.26 mpgs. I guess I should be happy with that since I should be getting 11mpgs on the highway according to the list above, but as always I would love to get better.
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