Moore08

Everyone I know who started out with a 5.0 are know driving ecos, I'll agree to the fuel mileage being finicky but as of now im averaging 19.6 mpg in a super crew lariat fx4 with 3.55 gears .. I love the 3.5 Eco

doolin64

For me the 5.0 was the easy choice. I had no choice with the plow prep package.

Floatman

I can relate to all the posts on all the treads about this subject.
I have a 2012 Lariat SCAB 4X4 355. I was mesmerized by the turbos! I am a heavy foot driver, and love the power of them! I also like the quiet efficiency of them as well. Of course if you use the turbos you don't get the advertised milage. That was ok. I have 65000km on the truck, and the only issue with the engine was the vacuum pump died. Fixed under warranty, and Brittany helped with speeding that up. I succumbed to the beauty and hype of the 2015s, and ordered the same truck I have but with.....a 5.0 with 331 gears
Why?
The numbers are similar, the power curves are a little different, but similar, and I never tow.
I saved $900 on the cost differential. I only keep a vehicle for 3 years or 60000km, usually. I like always being in warranty. The 2012 is now out of warranty, and I'm nervously waiting for the 2015.
So to the OP, weigh your options, make your selection, and don't sweat your decision.

2015PlatF150

3.5 Eco here. The 5.0 gets is power from the upper rpm range and I felt like it had to continuously down shift to find the power. The Eco didn't have to do that. Just my opinion.

Smidgy

I agree 100% on being moot, but these always get to pissing matches so I just fast forwarded through all the drama. I ordered a 2015 with a 5.0 so take that as you will, didn't know that you could get a 3.5tt with 3.73's everything I have seen up till now has been 3.55's.


Apples or Oranges, they both are good. The real question is which one you like better.

Smidgy

That's the function of the turbo's and boost, that downshifting is just that. It isn't easier on mileage, it just doesn't downshift. They make power in different ways and take different approaches to do the work, just because it downshifts doesn't mean it has less power, it is just not making enough power in the current gear at that rpm to hold it. The new 5.0 has a higher torque number at a lower rpm, as well as more hps. With a lighter truck it is a definite competitor to the 3.5tt

News in

I'm still hanging around to see how many of the new 5.0's knock and how many of the new EB's have complaints of the condensation issue, fuel dilution, or stretched timing chains (although hopefully the last two won't show up until higher mileages). I'd be happy with either, I think. I rarely tow. I'm leaning 5.0 for perceived reliability/relative simplicity (as long as you get a good block / non-knocker). The 5.0 seems to have less complaints (either you get a good block and a quiet engine or not) while the eco's have more varied issues (timing chain, fuel dilution, condensation issues, and the relatively rare issues with turbo and associated hardware). I'm not saying the eco has more issues by number necessarily, I mean more as in more variance in the types off issues. I'm also curious how the 5.0's variable timing hardware will stand the test of time as compared to the cam phaser debacle in the 3 valve 5.4's. I'm also curious how many "twin turbo's are the wave of the future" and "V8 or nothing" posts will show up here lol.

leafspring

my 2011 was a 5.0, I got rid of it because it was coming out warranty, and it was blessed with the knock. My wife's fusion has the 2.0 ecoboost, that thing has been absolutely problem free. That helped me make up my mind on getting the 3.5, and my work pickup is a 6.7 diesel, so I really like the 3.5 for the feeling that you don't have to stand on it to get response.


Both engines are a good choice, but they are different animals.

Furkmyster

iTrader: (1)

My brother has 13 with the eco and 3.73 rear end. It has plenty of snap off of the line. I ordered a 15 with the v8 and 3.73 rear end. The only complaint he had with the eco is he had gas in the oil noticed at one of the oil changes, but otherwise no issues at all.

aliass24

What motor do you think would be affected the most mileage wise running 35's? I've heard that mpg is affected more so on the EB.