Expected MPG's

Letting go of the gas pedal definitely helps with the newer vehicles.  Puts the system into "sip" mode, less fuel wasted.  Vehicle also runs at lowest possible rpms for that speed.
 
The key with any forced induction motor is to stay out of boost in order to get the best mileage.  I've found that the cruise control doesn't do a good job of that because it can't anticipate the changing elevation of the road ahead like a human can (not till they start syncing the cruise control with topographical maps of the roadways and GPS, which is coming in the future).  I've also found that staying in a higher gear and letting the turbos build a bit of boost to get you up a hill instead of letting the car/truck downshift nets better mileage.  I also personally think that getting the car to shift into the next gear as soon as possible and getting the converter to lock up when accelerating also helps with MPG.

  I know this is more of an SHO dominate site but here is my experience.  Our Flex got a consistent 21-22mpg on the highway stock and we got anywhere from 23-25mpg with Torries 93 MPG tune.  I believe 25.2 going from Ohio to Georgia on I-75 was the all time record for me.  In our regular driving (city driving mixed with 10-20 mile jogs on the interstate) netted an average of about 20mpg when I drove and about 17 when my wife drove (she liked the ecoboost more than she lets on is what that tells me).  With the F150 in the same driving conditions averages about 17mpg stock and I am up about 1mpg have way though the first full tank of Torries 93 MPG tune for it.  We haven't made any highway trips yet to see how that goes.
 
05yellowgt said:
The key with any forced induction motor is to stay out of boost in order to get the best mileage.  I've found that the cruise control doesn't do a good job of that because it can't anticipate the changing elevation of the road ahead like a human can (not till they start syncing the cruise control with topographical maps of the roadways and GPS, which is coming in the future)
Click to expand...

I've found that the cruise control on my SHO is much more aggressive in keeping the speed at where it needs to be...my Mustang gains speed going down hill, where as the SHO will lock in and generally it seems like it makes the car "pull" more then what the Mustang did or any of my other cars I"ve had with cruise control.

One example I can think of is that when stepping on the brakes and then engaging the cruise again on the highway...the SHO pulls harder then any of my other cars...the older ones where pretty genital when accelerating say from 60 mph back up to 75-80...or even from 35 to 50-60MPH.
 
Scott13SHO said:
05yellowgt said:
The key with any forced induction motor is to stay out of boost in order to get the best mileage.  I've found that the cruise control doesn't do a good job of that because it can't anticipate the changing elevation of the road ahead like a human can (not till they start syncing the cruise control with topographical maps of the roadways and GPS, which is coming in the future)
Click to expand...


I've found that the cruise control on my SHO is much more aggressive in keeping the speed at where it needs to be...my Mustang gains speed going down hill, where as the SHO will lock in and generally it seems like it makes the car "pull" more then what the Mustang did or any of my other cars I"ve had with cruise control.

One example I can think of is that when stepping on the brakes and then engaging the cruise again on the highway...the SHO pulls harder then any of my other cars...the older ones where pretty genital when accelerating say from 60 mph back up to 75-80...or even from 35 to 50-60MPH.
Click to expand...

Did it do the same thing stock?  I could imagine the stock programming being more docile when it comes to resuming cruise and then using the same logic for throttle percentage on a tuned vehicle would cause more rapid acceleration.  The holding of the speed on downhill is because of the aggressive fuel cut while coasting that is designed to increase mileage.
 
Did it do the same thing stock?  I could imagine the stock programming being more docile when it comes to resuming cruise and then using the same logic for throttle percentage on a tuned vehicle would cause more rapid acceleration.  The holding of the speed on downhill is because of the aggressive fuel cut while coasting that is designed to increase mileage.
Click to expand...

Yep...other people who have ecoboosted engines have reported the same thing...
 
A lot of it is due to the characteristics of the Ecoboost motors.  The tiny turbos make boost very easily and therefore a lot of torque down low compared to n/a motors.  That just equals quick acceleration, especially in the 1,200-2,000 rpm range where even a bigger n/a motor makes next to no torque comparatively
 
My daily combo mileage (as shown by the computer, too lazy to calc myself) is 23.5 and thats highway and country roads for all by the last 2 miles of a 25mi commute. This past weekend did a 3hr drive to KC and back. Averaged 28.2 with the cruise set on 80 for the vast majority of the drive.... MUCH better than the 14.2 my F-150 got...
 
I did a 24.7 mgp avg on 980 mile trip over Labor day.  Torrie tuned 91 octane.  Did not run much over 78 mph on interstate.  This includes rush hour traffic and DFW intown driving.  Not bad.
 
I have a 14 xplorer sport. I have been averaging about 15.5 mpg around town.  I just took a work trip from jersey to Conn about 235 miles round trip and averaged about 18.5..
All mpg from the display.. Numbers might be a little low but I drive aggressive.. Did about 80-90 whole way to Conn.
Currently truck is stock except for 24" wheels...
I have the my tunes, Tstat, 3Bar, CAI and plugs waiting to be installed.....
I can't wait to get everything installed and see the difference in power, performance and mpg with the tune...

Tunes from LMS..

Does anyone know what tunes get the best mpg or is that based on how you drive??
 
If you take it easy, which is very hard, you should get better mileage with a tune.  I'm not sure if one is better than another.  Maybe having a little torque management would help.  Are your new wheels and tires the same diameter as stock?

EDIT-I think Stage 2 has torque management.  Stage 3 has reduced torque management.  4 and 4+ do not have any torque management.
 
I logged about 600 miles today going from cleveland Ohio to Williamsburg VA.
Trunk stuffed to capacity and back seat fully loaded, I averaged 26.8 mpg by the computer and  25.9 by gal/miles. Not bad considering all the hills I had to climb.
 
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