These substitute products they sell here should never be used and are a hack product. They are often full of stop leak and other unknown additives. Once you have recharged using these substitute products, you likely won't be able to get it serviced by a shop as they will do a test and determine it isn't R134A that was used. They will simply not take the risk of cross contaminating their expensive equipment.
The proper approach is to have a shop with the proper equipment evacuate, vacuum down the system, test for leaks and then re-charge the system with the correct amount of refrigerant. This would cost around $300, but then you know that you have a proper functioning system, with both the correct refrigerant (R134A) and proper amount of refrigerant.
The proper approach is to have a shop with the proper equipment evacuate, vacuum down the system, test for leaks and then re-charge the system with the correct amount of refrigerant. This would cost around $300, but then you know that you have a proper functioning system, with both the correct refrigerant (R134A) and proper amount of refrigerant.
