Has any shop, or Auto Parts Sales Person ever tried to have you add an Air Conditioning Sealer to your leaking system? You must NEVER use a sealer of any kind in any A/C System. It will clog any otherwise properly working systems and cause catastrophic A/C System Failure which WILL amount to hundreds, if not thousands of dollars in unnecessary repairs, not to mention clogging the lines and filters of my very expensive A/C Recovery and Charging Equipment. This is not a MIGHT, or COULD HAPPEN, it is a WILL HAPPEN scenario.