NHRoadking

The most consistent thing about the Ecoboost mileage seems to be it's inconsistent.

Would love to see a test between the 2.7 and the 5.0 over the long term under the exact same conditions.

5.0GN tow

I have towed with an eco in my Lincoln MKT. It does fine but the engine does attempt to hold gears too long in my opinion by progressively adding boost. This builds heat and there have been several accounts of ecos overheating under heavy load, high heat, steep grade towing. The IC is not as big as it should be for what ford asks of the eco

MadocHandyman

Ah, no. Not all past 5.0 owners have gotten 17-20. Do you guys subconsciously glaze over the posts complaining about low mileage?

MadocHandyman

How many is several? I haven't seen but a handful of people on here over 4 years that have overheating issues. You seriously don't think that a 5.0 towing the same load and in the same conditions that would overheat the Eco, would overheat as well?
You're comparing your Lincoln to the programming of the 150?

CurryBob

People who love 8s love 8s. Nothing wrong with that. Great motor and will last a long time.

People who love EB love EB. Nothing wrong with that. Great motor and will last a long time.

Get what you want to do what you want! I have an 8 in my car and love it, I have a EB in my truck and love it. All is claw!

dave91gt

I can only speak to my experience and they do not pertain directly as I don't have a 2015.
I had a 2012 FX4 screw 5.0 with 3.73's. Drove it about 30k before I traded on a 2014 FX4 screw Eco with 3.55's.
I live in WV so I have a lot of hilly terrain.
The 5.0 would lay rubber from a dead stop and pull all the way to redline. It pulled every hill on the interstate in 6th.
I towed three times with it. All three were towing an all steel car hauler (about 2k). The first was a jacked up Jeep TJ from Canton OH- about a 3 hour drive. Pulled in sixth on flat ground 70 mph. Would drop to 5th on the hills. Got 17 mpg towing the trailer only and 14 with the Jeep. Second was an 89 Mustang LX. Towed about 60 miles. Didn't pay attention to mpg. Had 34" Trails on it at this point. Towed great. Third was the wife's 08 Expedition. Actually picked the rear tires of the truck off the ground when loading. I figure total weight somewhere between 7500-8000 lbs. towed fantastic. Only 20 miles to dealership. Best mpg was a beach trip. 21.9 mpg (stock tires). The day I traded it the mpg was somewhere in the 16's. I loved the power that truck had. I am sure the gears helped.
My EB has 4k. I drove it 1500 miles or so before leveling and adding 34" Duratracs. For that first 1500 miles, the mpg was upper 13's low 14's. It pulled 6th obviously on the hills. But it stays in boost and sucks the fuel to do so. It has no chance of spinning the tires from a stop and has noticeable lag. Once it gets going it feels pretty good. But runs out of steam just before it shifts. With the Duratracs, it feels labored on the interstate hills more than I expected. I wish it had 3.73's. It doesn't have much pedal in 6th before it drops to 5th. I expected it to gain speed easily. Even with larger tires. Maybe I got a sick one. Regardless, it's getting tuned. I haven't towed with it yet but will this summer.
I have zero bias here. I am a Ford guy to the core. If I could do it over, I would have got the 5.0 with 3.73's. It seemed more powerful than my ECO and got noticeably better mpg. The Eco has a bit stronger midrange but less down low and at upper end of the tach. I know. Opposite of what the specs say.
I have a lease on this one (first time). When I turn it in, I will retest myself and decide between Eco or V8.
Either way, it WILL be an F150.

5.0GN tow

I am saying that at max rated load my 5.0 does not even labor or build any noticeable change in temp running up hill on hot days. I pull a large GN horse trailer that is right at max. With the Lincoln(bash me here but it has the class III tow package) at max rated tow pulling my boat it pulls like a freight train but does warm up a bit when it begins pouring on boost to stay in 6th. If I manually knock it back a gear and bring the rpms up it does not do get as warm. Heck if you cross the blue ridge mts on a 100 degree day in the Lincoln and let it stay in boost(no trailer at 80mph) it does not overheat, or even close to it according to the gauges, but when you pull off for gas she is really putting off the heat from working in boost. My truck same conditions is much cooler, and the mpgs are very close at 19 lincoln and 17.5 for the truck which I attribute to aerodynamics more than anything else. The lincoln is awd and the truck 4x4.

I love both of the engines they are very different and both very good. Its just in lots of years of towing everything from 40 foot lowboys, to travel trailers, and boats, to horse trailers find that letting an engine pull artificially low rpms in boost or by lugging a manual tranny on a NA big block engine is not a good idea. Based on the Lincoln, and all the towing threads here where everybody brags about holding 6th gear at 2000 RPM, it seems that fords programming is putting you in a situation to build excessive heat with an undersized IC to deal with it. Eventually this will catch up either by the tranny heating up due to systemic heatsoak or by making the turbo systems fail prematurely. All these engines are new so long term life is a huge question so I guess we just have to wait and see.

Snowflake

I've been driving and Eco for nearly 4 years now and drove a v-8 truck for a few days while mine was in the shop. I found the shifting on the hills annoying and the Eco doesn't guzzle going up the hill in boost barely moves above your average fuel economy.

tuxedoblack11

4 words. No replacement for displacement.

packplantpath

Darn right. That's why engines have done nothing but shrink and get more powerful over the last 40 years.