'08 6.4 best MPG mod questions??? - Ford Powerstroke Diesel Forum
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post #1 of 15 Old 03-26-2013, 05:01 PM Thread Starter
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'08 6.4 best MPG mod questions???

I picked up an '08 F250 with a 6.4 a week ago, really nice truck with 49K miles, gets 13-14 MPG. I am hoping to get to the mid or upper teens MPG with normal driving, empty. I am clueless, what changes should I make? there are a gazillion products with lots of promise. I have to think some are good. Is a Banks exhaust and programmer the way to go? Does the EGR need to go? I'm not looking for a good 1/4 mile ET, I'm looking for the best economy I can achieve from a big and heavy truck. I don't care if my truck sounds like a giant blow dryer after the mods. I really like this truck, it is a joy to drive and looks awesome. It's bone stock. I have had many nice F150's over the years, this is way better!
Thanks in advance for your advice.
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post #2 of 15 Old 03-26-2013, 05:41 PM
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Here is a good place to start, General 6.4 Modifications

Not being mean, just these questions get asked on a daily basis.

08 F-350 CCSB - H&S Mini Maxx, 5" MBRP straight piped and 3" CAC pipe, Flo-Pro full EGR delete, Spearco IC, AFE STG 2 CAI
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post #3 of 15 Old 03-26-2013, 06:15 PM
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I get 13-14 tuned and fully deleted, leveling kit with 35's


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Marshall
2000 F250 7.3L CCSB 2WD
Tinted | Focal speakers & 12" Kicker | CTS Edge Insight | Wicked Wheel | 6 pos chip | 05 grill & lights | 08 mirrors & tailgate | EBVP delete | 08 console | Nathan P3 train horns & Onboard Air
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post #4 of 15 Old 03-26-2013, 08:16 PM
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The best mod I have done for mileage is slide the seat (I'm shortish)all the way back and move the pedals all the way forward so I don't stomp it to the floor all the time.

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Originally Posted by bjs505 View Post
Of course I'm handy under the hood, I currently own a cummins.

2010 F350 CCLB Cabelas Edition
No Limit cai, Mini Maxx, 5" turbo back Flo Pro, Sinister egr delete, Sinister coolant filter, Cat EC-1, PTP shift solenoid. 20x9 +18 XD Monsters
01' 7.3 CCLB, 6637,wicked wheel G2, HPX, PHP Hydra, MBRP 4" Turbo back, Bellowed uppipes, Stancor gpr, 6.0 cooler, Fpr, Glow shift exhaust, pyro, trans, 203*/billet housing/ Cat EC-1, '07headlights/05' grill, Oh8' gate.
78' F350 "dumpy" old school
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post #5 of 15 Old 03-27-2013, 02:49 AM
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Delete the emissions parts. Just don't be stupid about it and set the truck up to blow black smoke all the time. Not only will your fuel mileage dramatically increase, you'll increase the life of the motor.
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post #6 of 15 Old 03-27-2013, 04:55 AM
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What he said.
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post #7 of 15 Old 03-27-2013, 05:36 PM
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driving conservative makes all the difference, other drivers on the road will get mad at you for driving turtle speed but you can just run them over anyway
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post #8 of 15 Old 03-27-2013, 08:15 PM
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Quote:
Originally Posted by floorboy View Post
The best mod I have done for mileage is slide the seat (I'm shortish)all the way back and move the pedals all the way forward so I don't stomp it to the floor all the time.
HaHa I do the same mod and it works fairly well until my azz starts sliding forward and the peddle gets smashed again

2010 F350 lariat cc sb srw
H&S Black Maxx,S&B CAI,,Readylift leveling kit,,GY 325/60/20,Smoked Recon: tail lights,cab lights,3rd brake light and tow mirror lights,AVS smoked window vents,20% window tints,Curt front mount hitch,Rear hitch mounted lights,Sinister coolant filter,PMF dual steering stabilizer,PMF traction bars 51 Gal. Titan tank,Bilstein 5100`s,Rudy`s up pipes,ARP studs,RCD egr delete w/ elbow,AFE cold side pipe,AFE 4"dp, AFE 5"
exhaust
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post #9 of 15 Old 03-28-2013, 05:20 AM
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Deleted, modded, and driving conservatively and I average around 13-14 in the city and approach 16 to 17 on the highway. For a truck this big, I am pleased with that. It actually gets better mileage than my wifes Navigator.
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post #10 of 15 Old 03-31-2013, 07:34 AM
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would the KEM tunes get better mileage then the regular HD tunes on the H&S? Im spending about 100$ a week right now on diesel.

aFe stage 2 intake P5R, MBRP 3" intercooler pipe, MBRP downpipe, MBRP 4" downpipe back exhaust no cat/muffler, PTP egr delete, H&S Minimaxx
ARP studs,71 lp and batmo hp wheel, coated 6.0 manis, rudys diesel up pipes, Pro Comp 6" lift
Fabtech traction bars, Recon smoked lights with LEDs all around.
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