Fuel mileage?

flyinlow

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New to the forum and looking at buying a 2011 Super Duty. From what I have read, the new motor gets significantly better mileage than the old one.

What are people seeing for highway fuel mileage (unloaded and not pulling anything)?
 

Suitehauler350

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Good MPG

My first 750 miles netted 18.5 MPG. About 1/2 of that time included the Ford programming upgrade to match Chevrolet horsepower.
 

02SilverStroke

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My first 750 miles netted 18.5 MPG. About 1/2 of that time included the Ford programming upgrade to match Chevrolet horsepower.

What type of driving? City/highway mix or mostly one or the other? As with most new engines, your mileage will only improve. Hopefully you'll be getting 20+ before long.
 

Suitehauler350

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Majority of mileage is short city trips so I am expecting greater mileage as it breaks in and as the mix starts to include longer trips.
 

camp dog

camp dog
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stock 6.7

I have about 2200 on my 2011 f250 4x 4 with 245s and a 3:31. Highway going over the mountains from the Imperial Valley to San Diego and back I got 19.6. All highway. On a more recent trip from Yuma to IV I got 20.3. Mileage is picking up for me on the road at about 70 mph. Around town has been around 15. I am towing my 32 foot fifth wheel for the first time next week for about a 240 mile roundtrip. I have had the 5er out for a couple of short trial runs and I get to 70 before I know it. Power plus. I am impressed so far. I plan to run the tires off of it as I paid for them and then get some a little larger. This is an impressive and very comfortable riding truck. I traded in a 99 3/4 ton chevy with a 454.
 

dc.snowball

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well ..one of the reasons i got the new 6.7 was fords promoting the fuel effiency. 7500 mi on a350/auto/3.55/4x..all around ave...16...60mph..flat roads...maybe 17.5...with afe air & def-back 4".. when we pull eq. it dives to 11/12..... any suggestions...on improvement w/o scrubbing warrenty. oh... just did my 1st oil changer and def fill-up.
 

gmcretz

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The Rebulic of Texas
Weekend trip

Only 2,700 miles on her so far, but made a trip to my mom's this last weekend; all highway, cruise locked on 74, 19.2 MPGs!!!
 

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