Having way too many cars, I got mine out the other day and drove it for about four days in a row. I drove the 2CV today. I mentioned this awhile back but it seemed the idle speed was not very consistent and was idling a bit lumpy. I was going to mess with the idle mixture until I noticed my air cleaner was still pointed in the "winter" direction! Pointing it upwards seemed to make a huge difference. It hasn't even stalled at idle on me! Although one thing I've wondered about. If the car sits for while, the gasoline evaporates but the oil doesn't so I'd imagine the oil mixture up. That can't help things.