BAD milage

[dgbuild]

Could anybody help me out here ? I have a 01 F-350 crew cab , single rear wheel and I only get 10 miles to the gallon . It has 221760 miles , but I have been getting that bad milage for a couple of years. Does anybody have a answer?

[lutts2011]

Is it all stock? Is there a lift, big wheels/tires?


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[dgbuild]

Thanks guy ; Yes it is pure stock I did put a power chip to gain better milage but it doesn't help anymore. It has 265X65X16's org. tire size as well

[lutts2011]

Originally Posted by dgbuild

Thanks guy ; Yes it is pure stock I did put a power chip to gain better milage but it doesn't help anymore. It has 265X65X16's org. tire size as well

Alright, not to sound stupid but how is ur driving? Do you get on the throttle all the time? Sorry just trying to eliminate the basic/common reasons


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[dgbuild]

Not at all , I'm 58 just trying to make a living and my truck is just a fuel pig. I don't mat it , I get on the Northway (free way) with ease . It has been bad for a few years . I now work for a contractor so I cant write off my fuel costs of charge my customers in my job costs. I no longer work for myself.
I am for the most part a easy on the peddle driver.

[lutts2011]

Oh alright
I'm somewhat new to the diesel world, but what about a fluid change and check injectors and check all your filters?


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[7.3550Duty]

Ok, when was the last time you changed the fuel filter?
Have you had your tranny checked out to see if the torque converter is slipping any at all??
Maybe try running a fuel additive to see if it helps out at all.
Another thing that would help you out would be doing the diy intake and maybe picking up a full turbo back 4" exhaust system. If you dont wanna spend the money on exhaust just cut out the muffler and slide a piece of 3 1/2" tubing in there.