During a recharge, the new oil is usually injected into the system via the low-pressure service port before refrigerant is added. Keeping the oil capped and stored in a dry environment before use is a standard professional practice.
Proper R134a PAG Oil Storage Practices for Technicians
Understanding the specific lubricants required for mobile air conditioning systems is essential for any technician or vehicle owner. Without the proper PAG oil, the rubber components can degrade, leading to leaks and a loss of cooling efficiency over time.
The primary role of PAG oil in an R134a system is to lubricate the moving parts of the compressor. Among the various refrigerants used historically, R134a remains a common standard in many vehicles, necessitating the use of a compatible PAG oil.
Proper Storage Practices for R134a PAG Oil
Chemical Compatibility and Function Polyalkylene glycol, or PAG oil, is the synthetic lubricant of choice for R134a refrigerant systems. Selecting the correct grade is a crucial step in ensuring the longevity of the air conditioning compressor.
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