The information provided in this manual was acquired through extensive research conducted in the automotive industry. With the latest information on retrofitting any technician capable of servicing an R12 air conditioning system can follow the directions contained in this manual and retrofit with confidence.

• This manual covers most vehicles and mobile air conditioning systems from 1970 to present, including Heavy-duty and Off Road.
• Includes R134a refrigerant capacities chart for A/C systems, which have been retrofitted from R12 to R134a

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