heres what happened... I'm park my car for an hour and come back and the tire is flat. So I go tothe tire place with it and they can't find a leak. So I drive it around for a month and one day I park it again and the tire goes flat. So, I take it in again and again they can't find a leak but remove a weight andadd the stick on kind because maybe that could be the cause. So, a month later it goes flat again. What is going on!!!!! n/m