Hello,
I just bought the 2013 Ford F150 XLT Supercrew 4x4 with the 3.5 Ecoboost, 3.31 gears, 302a equipment group. Built in Kansas City. Is anybody able to tell me 'real world' highway MPG? I normally drive 65mpg on the highway. Let me know your thoughts. Thanks for the information.

 

I drive mostly stop and go and have a long wheel base 4x4, so it's a heavy F-150, but in the summer months I get around the mid 15's. Right now I'm usually around the low 13's, but hand calculated a 12.5 on my last recent fill up. To be fair, it's been idling a lot lately, making mpg's worse than usual. Some here get great fuel economy, but I have a heavy foot and I don't.

 

I'm getting exactly what this poster is getting, and I also have a heavy & long 157", FX4 & 3.73's Max Tow.

 

Hey guys,
I appreciate the input. I only buy new vehicles once every 10 years or so. If the 'real world' mileage is 12, then how in the heck can they put up 21 highway? What a crock.

 

I have a 19.0 lifetime avg with 34700 on the clock.

Summer avg is better than winter.

Don't get discouraged with yours. Your mileage will seem low until next summer.

You will be fighting cold weather and break in, after that it will be good.

 

my buddy's eco boost has a lifetime average of 18mpg. My wife's SCREW ecoboost gets around 17MPG. Both of these trucks see daily trips to work in the 15 mile one way range. On long trips my buddies truck gets over 20mpg while my wife's truck won't break 20. The only difference between the two is my buddies truck has 3.31 gears and my wife's truck has 3.73. I believe the 3.31's are needed to get the best mileage out of these engines. And I agree with the others that there is a long break in with these engines, usually around 5000-7000 miles.

 

The new F-150 with a stunning 2,7 litre V6 EcoBoost mule is estimated to go for 30 MPG. At NAIAS at the 13 th Jan we will know for sure.

 

I also have a 13 4x4 super crew ecoboost 157inch wheel base with 3.31s. With 11K on the clock the dash shows about 16.5 this winter and 17.5 lifetime. This is mostly short trips of 10 or so miles

 

Congrats on your purchase. I have nearly the same truck and my lifetime avg is 19. I'm seeing MPG's as high as 23 @65 but she normally hovers around 21+ at 70+.

The engine will take between 7500-10,000 miles to fully break in. Your MPG's will incrementally improve to this point then level off.

The ecoboost is heavily affected by winter blend gas which results in lower mileage, this is normal. My normal combined MPG's in the summer are 19 and the winter is closer to 17.5. Don't despair, I have 33K awesome economical miles on mine.

 

There are so many different things that can affect fuel mileage:

weight of truck
size of wheels and tires
properly inflated tires
towing/loads in bed of truck
personal driving habits

Someone with a lighter truck will get better MPG because the engine doesn't need as much power to move the truck (same with hauling loads or towing). Someone with a lead foot will get lower MPG (even if they drive 65 on the highway, mashing the accelerator to get to 65 will lower overall MPG).

There is also the winter blend for fuel, and the break in period for your engine that factor into this.

 

Highway only mileage boys, that's all I care about. Seems differential is biggest variable. But, if ANY full size truck can get 20 mpg highway, I'd be happy!

I never check city mileage on my 5.4, highway has been 18 at 72-75 mph, 3.55 differential.

 

'11 Screw fx4 Eco 373 gears
15.6 lifetime mpg.
But I put the cruise on 80 on the interstate daily.
If I'm running 65 and reset the mpg meter and leave it there with cruise on it reads 18-22 mpg.
With the 331 gears you should beat that easily.

 

Hey guys,
I appreciate all the MPG info. Very soon I'm going to add a tonneau cover. Adding the tonneau cover should help a littlebit with MPG as well. Adios.

 

Urban myth. A cover isn't going to do anything for you except make your truck look great and hopefully provide some security for your bed.

 

I'm surprised at the low lifetime mpg's coming from ecoboost motors. Mine's at 18.8 and I have a 4x4 V8 Screw (4 door). It is about half city and half highway.