So I'm still not driving very much. Not quite a tank a month as I had planned, but I have gotten several free gas tanks (and meals) playing taxi for friends to the air port. So no biggy.
But this summer I had my 90 day average setting quite nicely at around 60% EPA. Now it's nearly half that and likely to go down more as winter hits dead on. It seems even with the block heater, the short trips around town absolutely kill the mileage. It seems the only way to beat winter mileage is to just avoid the car all together.