2010FX4F150GILROY

There are many factors that will dictate mileage. The largest factor is the screw loose behind the wheel.. If it is Ecoboost warriors tend to want to hear that engine rev and consequently costs mileage on the average.. But all things being equal the driver will be the big factor in fuel mileage. I have a Raptor so mileage is not really important to me, never has been either. But your splitting hares trying to decide which one will get you the most MPG's over time. Get what you want, not what anyone here thinks.... The cost later to say "I could have had a V8" negates any savings real or imaginary anyone here or the sales staff at dealer tell you... There is no replacement for displacement, and I drive a Raptor.....

MUFFMAN

I'd say both motors are pretty darn close in the mpg department. I have the ecoboost, but wouldn't have bothered me to have the 5.0. Both good motors. You choose.

Razorback150

I think that everyone here is missing the fact that this guy is trying to sell a truck. He's going to say whatever is necessary to clear out the lot. I am willing to bet that there are more 5.0's on the lot than ecoboosts.

Umbra Vipera

I looked at this a bit prior to our purchase of Eco screw. Consumer Reports actually listed both engines getting a shade over 15mpg on their test tracks. I don't remember the details on the gearing, drive train, etc. but I had read this else where that there wasn't really much difference between the two as far as fuel mileage goes.

Our truck has just under 4000 miles on it and so far the lifetime mileage is just under 16mpg (15.86). Those calculations are based on information collected and calculated outside of the truck (i.e. not using the truck computer). It is trending up as the engine breaks in but still a tad disappointing. I guess I should also clarify that this is on a FX4 Screw, 7200# pkg with 20" OEM wheels/tires and 3.73 rear end, and ZERO towing so far.

rancherlee

Exactly, the Eco boost "should" do better in relatively flat areas where it never sees boost and stays under 65mph. The ecoboost also has an advantage for "window sticker" numbers as it is avalible the most highway friendly gears. Same goes for towing, only the EB can be had with 4.10's. I was going to go with an EB for only 795$ more but it's now 1095$ + 500$ 5.0l discount = 1595$ differance. Talking with my neighbors and work buddies that have the new engines there mileage seems to reflect this forum, as in "It's a wash". Best mileage is a Eco-scab 4x4 3.31's that claims 22mpg @ 70mph cruise and the worst is a Eco-screw 6.5' 4x4 max tow that has never seen better than 18mpg @ 60mph and claims it drops to 16mpg @ 70mph which is no better than the max tow 5.4l he traded in. Should also be noted that this guy also has the "Eco-shutter" occasionally while passing/hard acceleration. The 5.0l guys are all claiming 19-21mpg @ 70mph with various 4x4 combos. The 5.0l tow mpg numbers seem a bit better from their reports.

BE25FX4

here's the thing... the dealers know the dirty laundry and are trying to make up excuses.

everyone knows that a forced induction vehicle with a smaller motor will get better gas mileage than a vehicle that has a larger motor that is not forced inducted, considering tuning and various aspects.

where the OPs sales guy sounds stupid is that Ford advertises better mileage on the Eco and it's doing worse. basically, Ford deployed a POS and now they are trying to backpaddle through the crap storm they have created.

on a side topic - look at the new 2013 5.0... it's rated for 21 or so MPG. interesting... i think they have just modified the tuning... like they should have a long time ago on the early 5.0s in 2011/2012.

ggallant1

Where did you find stats on the 2013 5.0?

Side note, I would not conclude that the EB is a POS. There are thousands of people who are completely happy with the motor. They continue to fly off lots and are hard to find on the used market. This forum is not a great indication of the motors success. There are people here getting the advertised mileage (and more) and others who have trouble matching the mileage of the 5.4. Both the 5.0 and the EB have had their share of issues, which are exaggerated by the number of people on this forum as a relative percentage. (most people come to an internet forum because they are having problems)

Wanted33

Shortride, somebodies gonna get a great used XLT when you trade. It's a beauty. As far as mpg's, I see some report mileage that is as good as my 3.7 SCREW with the 3.73's. But it's all good. Keep us posted on the new one.

troutspinner

You chose the engine you need and MOST importantly, what you can afford. If this minuscule difference in mileage one vs. the other (depending who you talk to) has you undecided, you might want to think about a more economical option in a vehicle.

FWIW, I have an 11 Eco Screw 4x4 with 3.55's and I can get 23-24 all day long if I choose to stay out of the boost........which rarely happens . 13k miles on it now and it just keeps getting better and better.

sharper4

I just traded in my '11 Eco for a '12 and at first they mis-informed me the truck I wanted only came in a 5.0. Given some of the issues others have reported with higher mileage on the Eco, I was okay with either (only b/c I wondered if my '11 was showing the slightest signs those guys were reporting at the beginning of their problems). Got to the dealer and it turns out it was an Eco so I never ended up switching engines. But I've consistently gotten about 17mpg on two Eco's with avg highway driving.