Refrigerant Identification / Testing

CAUTION: Do not add R-12 refrigerant to an A/C system that requires the use of R134a refrigerant. Also, do not add R134a refrigerant to an A/C system that requires the use of R-12 refrigerant. These two types of refrigerant should never be mixed. Doing so may cause damage to the A/C system.

In order to find out which type of A/C system a particular vehicle has, the A/C system major components and refrigerant lines need to be inspected. If the system components have yellow R-134a Non-CFC tags, it is an R-134a system requiring the use of R-134a refrigerant.

If the A/C system has any of the R-134a identifying characteristics previously explained, R-134a refrigerant is the only type of refrigerant that can be used in the A/C system.