For the ecoboost engine in particular 190 200 seems to be the best temperature.
Active grille shutters ford.
Enter active grille shutters.
Essentially a way to boost fuel economy at higher speeds active grill.
Active grille shutters are a system that optimize aerodynamics by using vents within the grille to adjust airflow to the engine department.
When the shutters are closed aerodynamics are improved by up to 6 resulting in improved fuel economy.
Dearborn michigan active grille shutters which improve efficiency by opening and closing automatically to control airflow are popping up on a number of new models including the 2015 ford.
The active grille shutters are available on several of ford s models including the c max escape focus fusion and taurus.
These are great for cold weather climates like canada but horrible if its not cold outside.
Ford active grille shutters are special shutters in the grill that are opened and closed automatically to reduce aerodynamic drag while still allowing for proper cooling.