High 30's in your car is doing nicely! That's 25% over EPA.
What are your goals?
One technique I'd investigate is popping into neutral rather than coasting in gear.
I would not recommend coasting with the engine off in your car (1) because I'm not sure if it can be flat towed (ie. whether the tranny would be damaged by extended coasting with the engine off), but more importantly because (2) the steering in the new Civics is
brutally hard without assist. Far more difficult than some larger vehicles I've driven.
It might be due to the fact that they've also got tiny steering wheels.
