If moisture-laden oil is circulated in the system, it can lead to acid formation and corrosion of the internal metal components. If the wrong lubricant is introduced, it can lead to immediate system failure due to inadequate lubrication of the compressor or the formation of sludge that blocks the expansion valve.
R134a PAG Oil Vs Other Types Comparison: Key Differences and Compatibility
Using a viscosity that is too low will result in poor lubrication, while a viscosity that is too high can cause increased drag and reduced cooling performance. Chemical Compatibility and Function Polyalkylene glycol, or PAG oil, is the synthetic lubricant of choice for R134a refrigerant systems.
This specific chemistry is required because traditional mineral oils are not miscible with the HFC-134a gas. Noticeable reduction in cooling performance despite adequate refrigerant levels.
R134a PAG Oil Vs Other Types Comparison: Key Differences and Compatibility
Environmental and Regulatory Context. Among the various refrigerants used historically, R134a remains a common standard in many vehicles, necessitating the use of a compatible PAG oil.
More About R134a pag oil
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