F150 Ecoboost Forum banner

1 - 20 of 125 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter #1
Bought new EB Lariat in December: my experience is 12.4 ave mpg in town over the course of a full tank (not the instant readings on the dash, although it is reasonably accurate) and 16.8 is the best average for a full tank, 100% interstate at 72/75 mph. average for 10,000 miles plus is 14.7 mpg of which 2/3's was interstate... needless to say, disappointing.

i now have 15,000 miles on the vehicle, love driving it, only complaint is the gas mileage. as others have posted, i have taken it to the dealer for service, they have kept it for a week and done driving tests and such on it to say that according to there computers there is nothing wrong. The dealer escalated it to Ford and Ford's reply was that it is within the tolerance of driving conditions, offered no solutions and left it up to the dealer to work it out with me.

there seems to be more experiences like mine on the posts so i don't think poor mpg's from an ecoboost is an isolated incident. At the same time many are getting great gas mileage. it seems, especially given how great the truck drives, that it must be a simple, fixable problem with airflow, tuning or something... has anyone with this issue been able to find a solution?
 

·
Registered
Joined
·
1,529 Posts
First of all, Welcome to the forum!

I would say your answer is in your post. 72/75 on the hwy. I have the 3.73s and try to keep it right around 65 on the hwy but will push it to 67-69 occasionally. In good weather with minimal wind I am getting 20-24 mpg regularly. When the weather sucks rain/wind/snow I get at minimum 17 on the hwy.

Around town I get between 16 and 18 regardless of weather. The lowest I have had around town is 16.

If you drop your speed a little and keep it under 70 and you are still getting poor milage in good weather you may have a mechanical issue.

Keep us posted on what you find, but I'll bet a shiny nickle that your mpgs increase.

SPPD
 

·
Premium Member
Joined
·
413 Posts
I bought mine in September and ran around 13-14 around town this winter as well. Since the temps have moderated its up to 15+. I've seen high as 24 on the highway under 65 mph (with tail wind) but average has been 19 +/-. Current lifetime average is 15.6. Pulling my trailer with a 3700 lb. car on it yeilds just under 12. For this heavy truck I'm very satisfied to say the least. Weather, driving style, tire pressures and idling have a big effect in that order. Mine has the 3.31 gearsets but from what I've read that doesn't seem to make a whole lot of difference.
 

·
Registered
Joined
·
139 Posts
I too hsve a 2012 with 3.55 and I'm averaging 17.x combined...70-79 highway..curious maybe its a 4x4 issue?? Sucks to hear of your issues
 

·
Registered
Joined
·
35 Posts
I've had my truck for 3 months now, truck has 22000 on it 3000 by me. 2012 supercab,4X4 3.55 gears. I have averaged 17.1 overall for those 3000 miles. No trips longer than 70 miles and lots of town driving. I have found that if I really try I can get 16 plus in any kind of driving. However, still trying I can't get over 18-19 on the hiway. I'm in CA with warmer temps, seldom cruise slower than 70 on the hiway. My problem is my right foot......how much fun is it to mash the throttle???? I control myself and keep mashing to a minimum but it is included in the 17+ average to date. I have found that cruise control improves mpg dramatically. Heard the SCT tuner can give 80hp, 100lbs torque with exhaust and improves mileage......help me see the negative in this........by the why, I'm a 62yr old motor head.......old but not dead.....:) absolutely love this motor!!...........John
 

·
Registered
Joined
·
122 Posts
Ok, so here's the deal. Circumstances have everything to do with it. Under 6k miles has to do with it because of the transmission. How it was driven in those first 6k miles effects the shift points because the transmission learns the drivers habits and adjusts appropriately. Altitude also does, I for example live in Denver, things are different here. Talk about things all you want but I have talked to other sales reps from all over the country. And the only thing we can consistantly come up with is that everyone is different!!! If you really TRY at it then you should be able to get the mid-high teens overall. But I have talked to plenty of people who get 12.4 mpg all the way around. This happens. They drive the piss out of the truck. Truth is, it's hard to get a real life estimate of what YOU are gong to get until you drive it. Want great gas mileage? Buy a focus. Want great gas mileage with ability to tow, buy an EcoBoost. But either way, there are plenty of examples of GREAT fuel economy from the EB.
 

·
Registered
Joined
·
589 Posts
So I'm guessing the right foot is the answer to the question lol! But like folks have said its how you drive, where and weather conditions etc. sorry to hear its not up to par as you would have hoped.
 

·
Registered
Joined
·
12 Posts
Since I was getting crappy mileage too (2012 4x4) I've been doing ALOT of research on this and I did the following: I had heard that when the trucks left the factory the plugs gaps could be incorrect. Pulled all mine and found that I had two that were at.028, one at .029 and the remainder at .030. Replaced them all with the same and gapped all to .035. This made a small difference in MPG's. I had also installed one of the grills in the intercooler opening. The one was made out of aluminum with a number of horizontal bars. Since Ford stresses not to have anything in the opening I pulled the grill and removed every other bar. This made about .5 MPG difference. I then installed a aFe Stage 1 CAI. This made the most difference, about 1.5 MPG. Before doing any of the above I had never touched 15MPG since new. Now I'm getting a consistent 16+ in town and 17.5+ doing 65 on the highway. My highway trip was only about 30 miles but I could tell if I had gone farther the MPG's would have continued to go up. All my testing was done while the air temp was the same and since purchasing the truck my driving habits have changed to having an egg between my foot and the gas pedal. My next step is to install a aFe Bladerunner Intercooler Pipe and see what that does and then a catback system. Right now I'm looking at aFe's and Stainless Works. I have to say I'm very disappointed in the mileage I've gotten, especially since I bought the EB for the mileage claims. I was a member of the Motorcraft site where I could access all the TSB's and memos and I found Ford's answer to all the complaints about poor gas mileage; "Tell the customer to drive better". Yep, believe it or not, that is Ford's response to the F150 EB's poor gas mileage. Forgot to mention that the very first thing I ever did was to install a MBRP stainless catback system. It made a 1 - 2 MPG increase but I couldn't stand the sound of it. I put up with it for about a week and pulled it off and put the stock back on. Anyone want to buy an almost new catback system?
 

·
Registered
Joined
·
7,395 Posts
You have to keep out of the boost to get good mileage. I you hear the turbo spool up, you need to reduce the load on the motor or your mileage will suffer. For me, the difference between 60 mph and 70 is at least two miles per gallon probably closer to three. The EB is more finicky in this regard than any other vehicle I have driven. My other truck gets about 13 mpg at 75 unloaded and about 14 at 60.
 

·
Registered
Joined
·
12 Posts
Correct. But in all the research I've done, one way that Ford got the 365hp out of this engine was to pretty much have the turbos going all the time. And since the turbos are going all the time it causes the engine to call for more fuel, so your pretty much screwed as far as mileage. Just a FYI, I've been driving this thing like a 90 year old man. Crap, I drive this thing in such a way that it takes me over a mile to get this thing up to speed when getting onto a highway. My driving habits have change drastically since getting this truck, just trying to get the most MPG's I can out of it. And as I said, Ford is aware of the poor fuel mileage and their response is to blame it on the driver.
 

·
Registered
Joined
·
1,529 Posts
Correct. But in all the research I've done, one way that Ford got the 365hp out of this engine was to pretty much have the turbos going all the time. And since the turbos are going all the time it causes the engine to call for more fuel, so your pretty much screwed as far as mileage. Just a FYI, I've been driving this thing like a 90 year old man. Crap, I drive this thing in such a way that it takes me over a mile to get this thing up to speed when getting onto a highway. My driving habits have change drastically since getting this truck, just trying to get the most MPG's I can out of it. And as I said, Ford is aware of the poor fuel mileage and their response is to blame it on the driver.
Try getting up to speed quickly then hold your speed like you have an egg between your foot and the pedal. That seems to be the ticket for me. Also coast to a red light for as long as possible ahead of time. Make sure your tires are properly inflated. All these things can and will make a difference. Unless you live in extreme cold dont start the truck and let idle for very long as this makes a huge impact on mpg. You can also google hypermiling and get some tips there for increasing milage.
The biggest thing I noticed that improved my mileage was adding a lightweight soft tonneau cover. It improved my mpg by about 2 on the hwy.

Good luck,

SPPD
 

·
Registered
Joined
·
14 Posts
I drive the he'll out of my truck all city driving and getting 16.9 mpg. I live in the Tampa Bay area always warm and humid. Not sure why you are having Crapy mpg but again I drive hard boost always going and my mpg is ok and I don't even care or watch my my mpg.
 

·
Registered
Joined
·
7,395 Posts
Slowly getting up to speed only hurts your mileage. Like sppd said, get up to speed quickly, then drive a consistent speed. CC is your best friend.
 

·
Registered
Joined
·
45 Posts
First of all, Welcome to the forum!

I would say your answer is in your post. 72/75 on the hwy. I have the 3.73s and try to keep it right around 65 on the hwy but will push it to 67-69 occasionally. In good weather with minimal wind I am getting 20-24 mpg regularly. When the weather sucks rain/wind/snow I get at minimum 17 on the hwy.

Around town I get between 16 and 18 regardless of weather. The lowest I have had around town is 16.

If you drop your speed a little and keep it under 70 and you are still getting poor milage in good weather you may have a mechanical issue.

Keep us posted on what you find, but I'll bet a shiny nickle that your mpgs increase.

SPPD
I totally agree!
 

·
Registered
Joined
·
216 Posts
An easy test would be to get the truck warmed up 10+ miles. Get out on the highway set the cruise at 60. Reset mpg meter. Try and drive 8-10 miles without touching anything. If you are not averaging 22-25 mpg then you have some kind of problem.

I usually get around 15 mpg but that is about 2/3 in town and 1/3 towing a 19 ft boat. However I have done 3 350 mile trips mostly driving 60mph but cutting through several small towns with a few stoplights each. The first 2 times I got 21 and 22.5 mpg for the trip. The last trip I got 22 on the way there but on the way back I was in a hurry I passed more people and drove 65 and 70 on a few stretches. This dropped my average to 19.8 for the trip which means I realy averaged less than 18 for tbe return trip. Its all about speed and the right foot.
 

·
Registered
Joined
·
13 Posts
MPG is near and dear to my heart. It is the reason I traded in my, still loved, 2002 F250 7.3 PS 4X4 that I had added thousands of dollars in add ons to for the EB. So I have been monitoring MPG on ever tank for yrs. Besides the MPG feedback this truck provides I even keep a log book of every single fill up and do the math to check.

Having said all that there is countless number of things that effect MPG. You first have to come to the realization that people that report overly outstanding numbers or the absolute top end of what the sticker said are probably not measuring it to the exact amount that you are and are therefore not as accurate as you. And some of them are just full of it (not all) but some just like to make their truck seem like the best thing since the Model T. Secondly, Ford was trying to sell a truck and the range of expected MPG is exaggerated from the ideal testing that was conducted. SPPD and Raiderfan are right on the money--get to speed stay there and use CC. As a Bronco fan it kills me to say “Rasiderfan is on the money”. The things that I have found that contribute to MPG good or bad the most are:
1) Right foot (get to speed without trying to drag race and stay)
2) Altitude (HowFx2 is at sea level, when I drove from sea level to ID, CO, WY, NM it was measurable worse anywhere from 2 to 8 MPG)
3) Rear end

4) Conditions....headwind, tailwind.....
5) Forecast driving (hitting the breaks hard just means you have to get on the gas after, time lights and traffic if possible a
6) Quality of fuel

7) Tires, maintenance ......all the little things that you hear about and adds up if ignored
 

·
Registered
Joined
·
1 Posts
ecoboost

EB sucks. I had a 2013 xlt ecoboost crew cab standard bed and avg 14.3. Traded it in exactly 1 year due to killing two batteries with no explanation and got a 2013 6.2L V8. Would have lemon lawed it but heard horror stories about years in litigation. I avg 13.4 three months in and would much rather drive what I have now. Ecoboost was to touchy on the gas. Couldn't control acceleration. Will never recommend ecoboost to anyone.



Bought new EB Lariat in December: my experience is 12.4 ave mpg in town over the course of a full tank (not the instant readings on the dash, although it is reasonably accurate) and 16.8 is the best average for a full tank, 100% interstate at 72/75 mph. average for 10,000 miles plus is 14.7 mpg of which 2/3's was interstate... needless to say, disappointing.

i now have 15,000 miles on the vehicle, love driving it, only complaint is the gas mileage. as others have posted, i have taken it to the dealer for service, they have kept it for a week and done driving tests and such on it to say that according to there computers there is nothing wrong. The dealer escalated it to Ford and Ford's reply was that it is within the tolerance of driving conditions, offered no solutions and left it up to the dealer to work it out with me.

there seems to be more experiences like mine on the posts so i don't think poor mpg's from an ecoboost is an isolated incident. At the same time many are getting great gas mileage. it seems, especially given how great the truck drives, that it must be a simple, fixable problem with airflow, tuning or something... has anyone with this issue been able to find a solution?
 
1 - 20 of 125 Posts
About this Discussion
124 Replies
74 Participants
mass-hole
F150 Ecoboost Forum
F150Ecoboost.net is the best Ford F150 Ecoboost Forum with discussions on 2011+ F150 Ecoboost Trucks. Discuss performance mods, towing questions, wheels, tires, lift kits, and much more!
Full Forum Listing
Top