ecoboost mpgs
 

Got my 2014 Ford F 150 4x4 with ecoboost to 30 mpg at 55 mph yesterday. Seen 34 mpg at 50mph. Not bad for a truck.

Let us know when you get 30-34 for a tank or a 90 day average.

You can not be serious.

Barely perceptible decelerating over a short distance on a downslope with a tailwind doesn't count. The fuel log gives the most complete picture. A log with entries, that is.

I believe it. The hwy rating is 28, right?

Next time you achieve "34" do a 180 and achieve it again.

No, the truck is rated at 21 mpg on the highway.

I have to agree with FrankLee.

I can get my civic to read 120mpg at 50 for a couple miles on what appears to be level highway ground.

Going the other direction on the same stretch I can barely get 50.

I agree with Frank Lee and firehawk618. The mpg really has to be over a couple hundred miles. I can get over 50 mpg in my Ranger at certain speeds over short stretches. But I'm averaging about 31 mpg overall since I bought it five years ago.

21 mpg highway? That is why I bought a new Ranger before they discontinued them. I knew this ecoboost stuff was going to be a joke and I could never get decent mpg with an F150.

Still, over 30 mpg for a short stretch is a good start. Now practice and see if you can achieve that over a tank of fuel.

chill guys!!!!
It's a stock 4X4 ($X$) Truck.
At least he gives a sxxx and is making an effort to drive 55.
Aerostealth, keep up the good work!

All mpg is contextual. With a Herndon Aerolid and a Cd of .34 my getting 30 mpg was just a milestone. I have done 29 mpg before. With the warmer weather I am seeing higher numbers with the lower air density. Relax guys I am getting ready for a round trip to Monahans TX from Las Cruces NM and I will have a report on the trip with bona fidas. Until then I am excited to see these high numbers without the boat tail. For those of you who think the eco boost is a joke try making a 6,000 lb anything get 30 mpgs at 55 mph then you will have a leg to stand on.

The log only says 18. Incidentally, that's no better than my 21 year old 5.0 4x4.

What do you tell everybody- 18 or 34?

Hey! I get 70 mpg with my Tempo! :eek:

Let's cut the hating. EcoBoost can potentially give some decent numbers, his are on the high end but plausible to me. Let's welcome someone who cares to watch their MPG, eh?

I just spent a month in a '14 F150 5.0. The fe gauge was in 1-6 bars. Damn near impossible to hold 6 bars for a trip segment no matter what speed, although they could be had for small distances, barely perceptible downhill grades, barely perceptible deceleration, and favorable winds.

These small insignificant snapshots of a little slice of perfect conditions mean what?

While I agree with the haters that it would be nice to see a fuel log; I also appreciate that you are paying attention and working toward a goal. It's nice to see that you can get mid-30s in a vehicle that large. Yes, it is just a snap shot but the more see that snapshot the closer the average comes to it. Keep up the good work, would love to see how much you are able to squeeze of that package.

It'll be interesting to see what the new 2.7 ecoboost gets. Thats a tiny engine for a full size pickup.

Also, Ram Ecodiesel.

A 3.5 liter ecoboost is only 213 cubic inches. I can routinely get 24 mpg at 65 mph and 27 mpg at 55 mph. Of course any city driving kills the averages. My latest composite average for the last tank in the warmer weather is 19.7 mpg. I thought the goal here at ecomodder was improved mpg's through aero not hating on Fords or anything else?

You're doing great. Keep up the good work. Aero is one of the multifaceted emphasis's of this site. People just like to see long term sustained results with documentation. There's nothing wrong with getting excited about the aero benefits you're seeing, but you would have more positive feedback with more information and more details about long term mileage gains. Thanks for posting :thumbup:

I have and I will. In fact I just posted a graph of my composite averages through the winter and they are not great. Cold weather and higher air densities are a mpg killer. Any of you guys tracking through the winter should know that? My upcoming trip in warm weather should tell a significant story. City driving in a mix kills mileage. The combined mpg sticker on the truck is 17 mpg. If I am now producing over 19 mpgs as a composite average that shows what the aero is doing. The high mpg returns on the highway are dragging the averages up. That is valuable information. A trip log of the last 5 months while interesting is not that indicative of the benefits of aero because of the air density problem. I will have some trip results on the 13th or 14th for you all. From now until October is when you should be trying to get good data.

Yep. My winter mileage suffered tremendously. Here's my graph from the garage. As you can see things went way south around November.
http://ecomodder.com/forum/fe-graphs/graph8206.gif

Thanm Mikey jd that is ex actor what I am talking about.

"Hate" is kind of a strong word for reality check; this thread needed and still needs it.

Does winter not exist? Pretending it doesn't serves no purpose. The fe is what it is, unless you park your vehicle all winter and walk.

Did you do that Gadgetman Groove? :D

Ever do any towing with that Ecoboost? I've heard some truly horrendous numbers coming from buddies that own them while a trailer is attached. I think the Ecoboost is a good idea, and its a step in the right direction...but it is far from perfect. You seem to be doing pretty good so far.

Next year the farm will need a new 1/2 ton to depreciate out, and its looking like the Dodge V6 is the clear winner in this department right now. Hopefully Ford keeps improving the Ecoboost technology with the competition coming from 'Detroit" and they all come up with something competitive that holds up to regular use.

Well, he's not winning any awards for being diplomatic... but yes, he is serious.

Good fuel economy in a full-size truck is not an easy task. And many on here try. Very few are able to maintain 20mpg or more with a full-size gasoline truck.

I say this from experience. My old truck was a 2003 Silverado. Rated at 14/18 mpg (15 combined), it took me a fair bit of effort to exceed 20mpg for a whole tank. I did manage it though, and even had my 90 day average over 20mpg for a while. And that is driving it daily, in traffic, stop lights, etc.

I've had my Ultragauge show all kinds of impressive numbers, but at the end of the day, it's the mileage for the whole tank that matters.

I think part of the negative responses come from the fact that many here may expect more from your truck. The Ecoboost F-150 is touted as being very efficient by Ford, and your aero lid should help significantly. By your own reporting:

http://i1378.photobucket.com/albums/...ps8785cbbb.jpg

You seem to be averaging 17-18mpg which is on par with the combined EPA rating of 17mpg.

Averaging that good in cold weather is a coup. We shall see what the next three months bring. Towing is another matter. I had a 4x4 4 Runner towing a 22 ft trailer and was doing good at 12 mpg. It was a 3.5 L V 6 normally aspirated engine. I bought the truck so we can tow a 5th wheel but I don't expect higher numbers for a heavier longer trailer. If I can do nearly as well I will be happy. The aerodynamics of trailers is a separate matter.

for what its worth, "the fast lane truck" on youtube tested a new lincoln navigator with the 3.5 ecoboost towing a trailer up the mountains in colorado. IIRC the average over 7 miles was around 4 mpg. Worst case scenario but it does highlight that even a relatively small engine can be extremely thirsty when you have a couple turbochargers.

3.6 mpg
https://youtu.be/Q3fjr1G60G8

As compared to what? Up hill both ways I presume? There are no free lunches in thermodynamics. It is a energy equation involving rolling resistance, mass, and air resistance. A diesel might do better but the engine and the fuel cost more. Some of the new 5th wheels have nice rounded noses, completely paneled in under bodies, but still need boat tails to make them work properly. My guess is a V-8 would do as poorly and it weighs more and has more internal friction. We shall see and when I get one I will report on it.

My little 2.0L turbo engine can go from 44mpg to 0.55mpg with about 3" of throttle pedal movement.lol

http://en.wikipedia.org/wiki/Alfa_Romeo_158/159_Alfetta

51 alfa grand prix 1.5 liter was about 2 mpg racing.

regards
mech

Ain't that the TRUTH!!!!

http://i1378.photobucket.com/albums/...ps238a465d.jpg

Here is the graph of all my fuel use since the truck was new on Sept 17th. I got the aerolid installed on Nov 15th so I only have two months of data of the truck naked. The goal is to determine as well as possible what the aerodynamics is doing for improved fuel economy not to set a 30 mpg run for a tank or any hypermileing stunts.

The graph shows in Red the the truck naked. I used Blue to show the winter cold weather driving period. I used Green to showcase the warmer weather driving from March on. Trips are labled. There are four dashed lines with represent composite averages of different data sets. The Purple is of the truck naked including the break in period (14.52 mpg). The Red is of the truck naked with the break in period data subtracted (16.67 mpg). The Blue is the average of the truck from new to today (17.3 mpg). The Green is of the truck with aero since Nov 15th (18.56 mpg).

If I make a statement like I achieved 30 mpg at 55 mph it is meant to be a snap shot from a read out under good conditions. By that I mean warm weather, little or no wind, and on level ground. I am not trying to make a general claim of what the truck will do as a composite average over time. For example my composite average over the last 920 miles is 18.7 mpg which is a all time high. Getting to 19 mpg in mixed driving is probably doable in warm weather and good conditions.

I currently average between 26 mpg and 29 mpg at 55 mph on level ground. I think 30 mpg would certainly be doable with a belly pan. I just do not have any long distance driving where 55 mph is the posted speed limit. I do have a trip to Deming on May 9th and a trip to Los Alamos on May 16th to check tank mpg at more or less constant speeds. If the conditions are good I may see some high returns but if windy like conditions have been through April I will not.

Trying to figure out what aero is doing in real world driving is very difficult. I am seeing a little over 10% but that is a composite average of City/Highway/Mixed. Pulling a 30 mpg average on even a pure highway trip would probably not be possible even at 55 mph with a boat tail and a belly pan. It is possible for short distances on level ground, but in the real world there will always be grade climbs, winds, traffic, etc.

I have tried to portray the truck as honestly as I can given the data I have been able to collect and to show the potential of the improvements to aero we have made. Future mods should improve the performance even more. I will try to outline that also. You all can do me a favor and stop comparing my 36 sq ft of frontal area 6K lb truck with a 365 HP engine to your Geo Metros or Diesel Jettas. It is just not germaine.

I can get my 4-liter Mustang into the 2 MPG range while accelerating in first gear... But I've somehow managed to keep my last 25 consecutive tank averages over 30 MPG. (>50% over EPA combined estimate) :)

So the summary of this is tank to tank is the only measurement worth anything ?

I would not agree with that summary at all. There are many metrics an variables. My philosophy is driving the speed limit for one thing. Hypermiler's would not agree with that normally. I live a 4 K ft which means my vehicle does 8% better than equivilant vehicles at sea level. A instant mpg read out is indicative of the work the engine is doing in a given situation so it is useful. It is indicative of potential. Unless you have good controls over what kind of trash driving enters your data stream your tank to tank mileage could be really skewed. Conversely if you do pure highway driving it can be skewed the other way.

The instant readout is huge fun, regardless of everything else. Whistling up 120mpg for a mile or so is very exciting...even if I know it cannot last.

I look forward to hearing how your long trip turns out. Then is when we see how well the truck does at a steady state, bare, in moderate weather.

My Fit would get 'infinity' MPGs sometimes. Downhill, DFCO activated, if the hill never ended I would never burn any gas. w00t! Unrealistic, but great fun. My STi on the other hand will go from 20-ish MPG steady state to darned near gallons-per-mile with the noise pedal floored. Also w00t! ;)
Ditto that. I'm rooting for Ford bigtime. The company is taking tremendous risks with their big push for lower weight and higher fuel economy in the F-Series trucks. It's a huge step, a game changer. Everyone else is chasing. Maybe some other truck will top them in MPGs or some other stat, but that will only be because Ford made that stat matter by putting it at the top of their list. Not to mention that their use of aluminum will probably bring that material into much more regular use in vehicles at all price points -- not just the luxo cruisers.

Please keep us updated!

Any chance we can convince you to update your fuel log on EM? :) Its a lot easier to view than a picture of a hand made chart.

I keep wondering what it is about a on board computer in a vehicle that can count fuel pulses for the engine and revolutions of the wheel to determine mpgs that some people don't get. It can be a excellent diagnostic tool if steps are taken to use it correctly. Yes I have seen it report 99 mpg but I don't report it as a fact. I have seen 44 mpg over a mile at 45 mph but I know it is a elevation change and I have not reported it either. The truck can get from 32 to 34 mpg at 45 mph on level ground however which is a outstanding performance given what it is. As for the fuel log at ecomodder I haven't figured out how to use it yet.

Click the Garage link at the top of the page. Then click on the "Fuel Log" link next to your Ford Stealth entry. Then click on "ADD another fuel log entry for this vehicle" which is right under the chart. Fill out the info, and submit! Rinse and repeat for each fill up.