Agreed, my Ecoboost acts like this as well, someday's it just flys and other days it does seem sluggish.
Mine is modded quite a bite which has helped but I am thinking maybe gas fillup's, intense humidity here in Florida somedays or if it has sat a few days in the garage, all seem to make a difference.
Next time your car feels moody take note of the outside temperature and humidity. The behavior of the car really changes with this stuff, not to mention the way your tires behave.
Summer in the south really sucks the life out of the Turbo but with 50 degree average in the winter we have outstanding driving conditions from October thru April.
Summer in the south really sucks the life out of the Turbo but with 50 degree average in the winter we have outstanding driving conditions from October thru April.