Which engine gets better mpg's? On paper the 3.5 gets better mileage. But some people report that the 3.5 Eco gets worse mileage than the 5.0. What is yalls feedback?

 

2012 5.0 here

In town - 15-16

Short trips, mixed city/highway - 17.5

Interstate @ 70 MPH - 21.5

2 wheel drive w/3.73 gears

 

I've never heard of the Ecoboost getting worse fuel economy than the 5.0L given equally configured trucks. There are cases where the Ecoboost doesn't get nearly as good economy as expected (like in my case).

It appears to me that rear axle gearing plays a huge role in Ecoboost fuel economy potential. People like me with 3.73 gears take a big penalty on freeway numbers. But I get just as good city numbers as the next guy -- maybe even better when considering my truck is on the high end of weight scale.

 

1 car salesman from 2 different dealerships told me this from customers they talked too.
I do not know what engine I want yet cause I plan on doing a 2in. or 3in. lift down the road and I don't know what engine will give me the better mileage after I do the mod.

 

I planned on getting the 3.73 gears w/ either engine.

 

Goldstar225 Is yours a 4x4 and what gears do you have?

 

If your goal is a 3" lift on a 4x4, you're not really concerned with MPG. As far as performance, the EB will likely fare better thanks to its large and flat torque curve.

 

I assume you're planning for taller tires? I don't know which will be a better fuel sipper in that scenario but I do know which one will have better driving manners. Ecoboost has a significant advantage in low- and mid-range torque and it will feel more "normal" with big tires.

The other thing I'll point out is if you gotta have a good rumble then don't buy the Ecoboost. There isn't a single manly noise from under my hood. It's just quiet authority.

 

subscribing.....

 

Yeah, I definitely agree with this. If you're looking for a lifted truck with bigger tires down the road, and IF you want a loud/deep sounding exhaust system, you're not gonna get the same noise from the ecoboost as with the larger engine.

I'd go with the larger engine. The fuel mileage is probably somewhat similar as long as your not sitting idling a lot.

 

Subscribing...

 

well crap here we go again.
i have to ask the OP did you buy your truck to use as a truck? if your answer is yes then just be happy with the simple fact the truck will out work most 10 year old 3/4 ton trucks!

 

2 wheel drive w/ 3.73 gears. I'll edit my original post to include that.

 

12' 5.0 3.73 hvy payload. 18-19 around town closer to 20 hwy. 14 towing. Love my 5.0
Charlie

 

2011 screw cab 3.3 EGOBOOST, highway with cruise on 23 plus, in town teaching other cars don't mess with a ecoboost 18 plus.