I'm looking for some input about "real life" everyday fuel economy from Ecoboost owners with the 3.73 rear end. 4x2 or 4x4 doesn't matter, but I'm not interested in mileage figures while hauling full loads or towing boats, etc., just around town figures please. Thanks in advance!

 

Mostly empty with just me I get 17-17.5 driving mixed roads but 99% is to/from work interstate from stop/go to flying down the road. I do hammer it at times too!

 

My bro just picked up an FX4 screw with 6.5 foot bed. Country roads/back woods driving and around town has it at 14mpg, reset with each fill up and has been same. Not even 1000 miles on it yet though.

 

Well,here is my take, I have xlt 5.5bed 4x4 off road with 3.73,
When i tow my 25' travel trailer I get 9 to 10 miles per gallon with 93 oct.
When not towing if i fill and drive arounnd town it's like 14-16 tops. I f i fill and reset and hit the highway i get as much as 21, then around town after highway by the time i hit empty its around 17. Keep in mind these numbers are only if i drive like a grandpa.....i have not reset trip B since i had the truck 13,500 and my overall avg is 15.

 

my overall avg is 14.5 mpg. Thats pretty much 50/50 driving. I can't avg over 15 mpg unless there is a 100+ mile road trip where I can make up mpg on the freeway.

 

11,500 miles on mine averaging 16.5mpg Supercrew with oversized tires/wheels.

 

2011 super crew lariat 3.73 4 x 4 6700 miles mostly around town miles

have not reset the B trip since i got the truck and it shows 17.2

it seems to be getting better mileage. can easily get 20 when driving easy. but it has so much power its torture not to open it up

 

2011 Supercrew 4X4 with the Offroad Package (3.73 rearend), 2-inch leveling system and 33-inch MTs. I have 2700 miles on the odometer so far, and the dealer reprogrammed my PCM for the larger tires.

My mileage basically sucks; 11.9 mpg if I do any occassional spirited driving to a best of 13.2 mpg if I drive like an old lady in the City. Highway mileage is usually in the high 13s to mid-14s range as our speed limits here are 65 mph up to 75 mph on the open highway.

So I am not getting anything close to what Ford advertises. Even with the lift and larger tires and deducting 2-3 mpg and reprogramming the PCM, I was expecting to get around 17-18 mpg Highway which would have been fine by me. But they must have tested the EcoBoost at 55 mph because if you go the speed limit at 65-75 mph the gas mileage is a joke. My lifted 5.4L with 35-inch MTs could get 14 mpg.

I should have gotten the Raptor.

 

Damn you, I was finally set on an EB and saving some cash... Now that is all out the window...

I see more variation in MPG's with the EB/3.73 setup than any other.

 

'11 FX4 Crew Cab, stock 20's & getting 13 MPGs around town - 19 on the highway. I have not towed anything with it since i got it over 5 months ago. Not bad, but a little disappointed. I think the 3.73 rearend kills the MPGs. But, I like the look of the FX4 package over the XLTs.

 

Ok, not bashing here because I've been wanting to get the ecoboost in my next truck for increased gas mileage but this thread has convinced me to hold on to my truck for a lot longer.

My 09 SuperCrew FX4 with 5.4, 3:73s, level and 33's is getting 15-15.5 MPGs in mixed driving.

 

Are you still impressed with the power since you have larger tire/wheels?

 

"Driving to school in my 2011 ecoboost screw 4x4 with 3.73. Some hills but mostly flat road.
No tail wind. (At 65 mph.) Getting 25 mpg."

http://www.youtube.com/watch?v=iTCGT-fJS4c

 

I think if you ask about the mileage with a specific setup up you have to also ask about other considerations like the terrain (flat, hills, mountsins, etc), urban environment (frequency of stop lights, etc), driving style, repetitive commuting, fuel blend and of course modifications.

There are so many variables that if you just look at individual posts about mileage there are some wild fluctuations, I have taken all the mileage reports with a big grain of salt. I have tried to lately talk with owners local to me to get more relevant data for my decision. This has shown me that the mileage difference between a raptor 6.2 an FX4 EB and an FX4 5.0 is negligible at best here in my local market.

 

I'm only on my second tank. 4X4 Screw, 6.5' bed, Off road, Max tow, 3.73 e-locker, stock 18 inch wheels. I have no choice - I have to drive like Grandma. Around town it is all stop and go, mostly stop. Often times I sit through 2 or even 3 changes of the light before I can get through, only to have the same thing happen at the next one. Rarely can you go more than a 1/4 [edit] mile [end edit] without having to stop for a traffic signal, stop sign, or someone turning in front of you. I'm getting about 13-14 with the EB. Yes, I've romped on it a couple of times but not much opportunity to do so. Same setup in the old truck with the 5.4L and 3.73LS I got about 11.5 around town hand calculated. The old 2003 RAM with the hemi never met a gas station it didn't like and used to get single digit mileage around town. I'll be making a trip to Florida soon, so it will be interesting to see the trip mileage. I keep a spreadsheet that I use on every fillup that calculates mileage and overall mileage. So far those numbers match the lie-o-meter numbers, but as I said I'm only on my second tank.