Need help and input

UtahFord · Mar 8, 2013

Ok so my truck I think I'm averaging 12 mpg right now and that's with my chip at 75hp I think I am currently running the bullydog 6 position chip I have a 6" lift 4" exhaust and Cai. I'm thinking about going to 35's and switching to a dp-tuner chip with economy setting how much will this help??

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UtahFord · Mar 8, 2013

Oh and if I added the ww2 as well

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Bobby@cp · Mar 8, 2013

If you want better mpg ditch the lift and big wheels and tires.

UtahFord · Mar 8, 2013

Well all in time that's why I'm dropping down to 35's

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Bobby@cp · Mar 8, 2013

Are you also lowering your truck down some?

UtahFord · Mar 8, 2013

Don't have the $$$$$$$$$ right now but I will be driving 460 miles every other weekend just curious if the dp-tuner Eco tune helps and if so even 1-2 mpg would pay for itself quickly

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Bobby@cp · Mar 8, 2013

You could always skip buying a new chip and get your current one reburned..... I believe there are a few that do reburn bully dog chips

Arisley · Mar 8, 2013

I know Tony Wildman at Total Diesel does. His tunes rock. I think Matt at Gearhead also does. Probably a lot more.

Getting your chip reburned will be cheaper than changing chips. That way it is simply a software change, you already own the hardware.

Is everything else right with your truck....Hubs staying locked, fuel leak, anything like that?

UtahFord · Mar 8, 2013

Arisley said:
I know Tony Wildman at Total Diesel does. His tunes rock. I think Matt at Gearhead also does. Probably a lot more.

Getting your chip reburned will be cheaper than changing chips. That way it is simply a software change, you already own the hardware.

Is everything else right with your truck....Hubs staying locked, fuel leak, anything like that?

Hubs stay locked, no fuel leaks that I know of and no other problems that are apparant. Does the custom tuning help enough to justify it?? Hmm I will have to contact him

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Arisley · Mar 8, 2013

When you say hubs stay locked. Do you mean all the time? If so, that could be one reason.

Check out his web site. It is a lot cheaper than what you think to just reburn your chip. Might be a fee to reformat, not sure.

UtahFord · Mar 8, 2013

They stay unlocked and only work if I lock them in. So I'm never in 4 wheel unless I lock the hubs and flip the switch

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Arisley · Mar 8, 2013

Probably just the lift and tires. They suck the economy out. Custom tunes will help, but not that much.

under pressure · Mar 8, 2013

my comparison, and i drive it like i stole it half the time, driving around town on 35s, No limit DD tune and this WW2, i hand calculate 12 mpg with what ever fuel im getting here in AZ.
On the highway on a leisure trip i figured about 15/16 mpg doing 65/70 mph last week round trip to phoenix with an empty truck.

PDT1081 · Mar 8, 2013

Is your speedometer correct? If it's not corrected for the bigger tires, you are actually travelling further than your odometer shows.

UtahFord · Mar 8, 2013

PDT1081 said:
Is your speedometer correct? If it's not corrected for the bigger tires, you are actually travelling further than your odometer shows.

Ya it is corrected actually

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lincolnlocker · Mar 9, 2013

with my dually this time of year i get 12.. and 14 with my 01.... ill pick up 2-3 with summer fuel..

live life full throttle

UtahFord · Mar 9, 2013

Hmmm why are these trucks so low

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lincolnlocker · Mar 9, 2013

my 01 has up pipe leaks and you cant see the boots on the ic tubes... im sure its leaking air.. my dually is 9000 lbs... so thats prolly why its low... but i think its great that a 9k lb truck gets that good... 10mpg hauling anything..

INFRNL · Mar 10, 2013

lincolnlocker said:
with my dually this time of year i get 12.. and 14 with my 01.... ill pick up 2-3 with summer fuel..

live life full throttle

+1 to this, winter fuel kills our mileage

UtahFord said:
Hmmm why are these trucks so low

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What are you talking about, these trucks actually do very well. What do you want from a truck?
You may want to check your ebps/tube, ipr, icp, cps, boost leaks, etc. There are many variables that can cause poorer fuel mileage. I did not pay attention to what your truck is exactly.
Last summer, I got 14ish city and 17-18 hwy in my F350 crewcab, lwb, 4x4 dually, auto with 4:10 gears. If it was a standard, srw w/3:73's; it would get quite a bit better. Thats pretty good for a huge heavy truck imo. There are others getting better than I am too.

You need to start going through your truck and check things out. I lost mileage about a yr ago; changed ICP, IPR, cps and gained mileage back. Sometimes the ebps and tube get really dirty causing a loss in mileage.