The 5 mile commute isn't really going to get any better. I'm more concerned with on the highway on long trips ... I do tend to take off and end up a few hundred miles away from. I have the 55 and under figured out excellent.
It's a manual and has a mpg gauge. I usually calculate by hand though.
I'd love to do a block heater, but I'm an apartment dweller
Tires on my vehicles are always at the max on the sidewall.
For the upper grille block, I'm going to put some plastidip on the grille and then clear tape around it ... that way I won't damage the grille. The lower grille - should I leave the tape on the inside of it or make a plexiglass thing so it's all flat?
Belly pan might be doable with a few sheets of plexiglass. Does it have to be under the whole car or just part of it?