Well it’s been a year with my Volt and for the first time I found out what it's like to put gas in this electric car.
I drove just 5,000 miles this year but only used 2.4 gal of gas with almost all of my days using no gas at all.
After one year the Volt asks to enter maintenance mode to let the gas engine run to prevent any fuel from getting stale. The Volt lets you decline for only 24 hrs. and then will start the engine and run as a gas car (mostly) till you burn enough gas and refill. It will still run only on electricity at slow speeds and stop at stop signs but the gas gauge always shows and miles are counted as a gas burner.
What a great job GM did on this car.