I NEED HELP WITH MY 08!!! - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 06-17-2013, 04:31 PM Thread Starter
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Exclamation I NEED HELP WITH MY 08!!!

I have a 2008 F250 with the 6.4 and I am averaging 10.4-10.5 MPG?!?!
This truck is STOCK and is a "daily driver". Only has 50,000 miles on it!
What can I check, fix, upgrade? Would a tune, or any other mods help? If so what is the best bet for the money?

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post #2 of 5 Old 06-17-2013, 05:55 PM
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Tuner dpf delete then egr delete if u get time.
Search engine has a million bits of info on this topic. Should get middle tp uper
teens after that
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post #3 of 5 Old 06-20-2013, 01:45 AM
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Well your gas mileage really depends on the type of driving. If you are doing a lot of city driving or have a heavy foot you are not going to get good fuel mileage with a tuner or not. I have H&S mini, diamond eye 5" dp back, and intake and my highway mileage is 23-24 hand calculated. But I also drive 80 miles on a daily basis that is just highway. If i am in the city and decide to play around with the truck it will drop down to about 12-14.
Dont get me wrong though. A tuner is great and i noticed a huge performance gain and fuel economy gain. the only downfall is that it will void your warranty with ford. if you are at 50k miles I would wait.
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post #4 of 5 Old 06-20-2013, 10:33 AM
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Read this forum. There's like two-three posts asking this same thing every week.
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post #5 of 5 Old 06-20-2013, 01:11 PM
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Tuner and DPF and EGR delete will help a bit, but honestly I am pretty heavy footed and I only saw about 1 to 2 mpg increase. But extending the life of my motor is what really made it worth it to me. Ohh and all the powa!!!


New Truck
15' F-350 King Ranch 4x4 CCLB
Platinum White / Caribou Metallic
Stock for now!

Old Truck
08' F-350 King Ranch 4x4 CCSB
H&S Mini Maxx 300 HD
5" Straight Pipe to 7" rolled tip
ARP Head Studs
FloPro EGR Delete with Intake Elbow
FloPro CAC pipe
Rebuilt beefed up OEM Up pipes
Deisel Site Coolant Filter
Firestone RideRite Airbags
35X12.50R20 ProComp Xtreme A/T
Ranch Hand Front and Rear Replacement Bumpers
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