I figured that it was due to the torque converter. The automatic does have efficiency losses, but I don't mind them, just gives more motivation to work harder on getting better MPGs
Wow, that's great Metro. I am planning a 180 Mile Round-Trip for next Friday and I am hoping to get into 50+ MPG for the trip and over 40 for the whole tank. Should be fairly easy, as long as I don't use Cruise Control and watch myself on the hills.
I really like coasting in the Civic. When I first started reading on this site I actually did some P&G with the car in Neutral (still not sure how this will affect the transmission, so I avoid it now) and it easily could do over a mile of 70MPH-55MPH with a short pulse back up to 70, but that was going downhill with no mods.