04 F250 6.0 seeing very poor mpg

sschuettenberg · #1 (**permalink**) 01-25-2013, 03:44 AM

Hello everyone let me first off say Im newly registered with this site. But I am very familiar with it as I've been browsing on here for awhile. The search button helped me out tons but its unable to find my problem in here.

So whats happening is on my truck is seeing 11.2 avg mpg calculated by hand. Its a 6.0 completely stock and driven like a old man. No mods have been done to this thing and it has just over 100k. I have replaced the fuel filter with oem replacement, changed the oil, and it seems the air box cleaner is in decent shape still. On average i drive 20 miles to and from the next job site on a day out basis mainly highway. My wheels are stock 16's no lift. The truck runs like its perfect i just know something else has to be going on to make this happen.

Please advise
Scott

**rdaffin** · #2 (**permalink**) 01-25-2013, 04:42 AM

Replace the air filter. Mine looked great but I went from 12.2 to 15.6 only swapping the filter. I used the airraid filter on the stock intake.

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sschuettenberg · #3 (**permalink**) 01-25-2013, 05:16 AM

Thanks a lot ill try this to start, would auto zone or Napa carry this filter as i only recall seeing K&N there.

**rdaffin** · #4 (**permalink**) 01-25-2013, 05:36 AM

I bought mine from O'Reily autoparts. They are also sold by XDP.

ZMANN · #5 (**permalink**) 01-25-2013, 05:38 AM

Your best served running the OEM Donaldson

it can hold close to 5lbs of dirt before pulling in the filter minder and it filters better than any other

diesel filters online. com or sunrise ford on here is decent $$

sschuettenberg · #6 (**permalink**) 01-25-2013, 05:50 AM

So upon researching this i noticed alot of members have done the tymar intake, would that be a preferred alt route?

ZMANN · #7 (**permalink**) 01-25-2013, 05:53 AM

not too

The preferred route is OEM unless you are running high HP

there are plenty of filter issues that will let dirt past many of the aftermarket units and K&N has proven to be the worst on these trucks