I blocked off the lower grill for the winter in hopes of warming up the engine quicker.
A piece of black foamcore 4x30" behind the grill:
I'd rather not change the outward appearence than try to gain any slight aerodynamics by modding in front of the grill.
I've compared the average of two fillups without the cover to two with the cover and saw an increase of 0.75MPG (27.25 to 28MPG), in spite of a small drop in average ambient temp.
All fills were ~1/2 a tank at the same pump with no topping off.
All the trips were short, mostly stop and go, 20mi or less, driving the way I normally do, which is pretty gently.
Linear Mode
