We took the hit on gas mileage too. The one good thing about that warning that comes on when you hit E is that the engine will no longer come on to recharge the battery if you have left it On and walked away. So will come back to a dead battery, but at least there will be a couple of gallons of gas left to get home and recharged.

Tom
San Diego, California
2007 Nissan Altima Hybrid
Radiant Silver - Black Leather
Technology Package
Purchased 5/26/2007