Refrigerator and Freezer Compressor Oil Quantity Chart | Fully4World HVAC

Refrigerator and Freezer Compressor Oil Quantity Guide

When servicing or replacing a compressor in a refrigerator or deep freezer, one of the most important things is to use the correct amount and type of oil. Too much or too little oil can damage the compressor and reduce cooling performance.

In this guide, Fully4World HVAC explains the standard compressor oil quantity for different types and sizes of refrigerator and freezer compressors used in home appliances.

Compressor Oil Quantity Chart (Approximate Values)

Compressor Size	Oil Quantity (ml)
1/12 HP	90 – 120 ml
1/10 HP	120 – 150 ml
1/8 HP	150 – 180 ml
1/6 HP	180 – 200 ml
1/5 HP	200 – 220 ml
1/4 HP	220 – 250 ml
1/3 HP	250 – 300 ml
1/2 HP	300 – 400 ml
3/4 HP – 1 HP	450 – 600 ml

⚠️ Note: Always check the compressor’s nameplate or manufacturer datasheet for the exact oil quantity and type before filling.

Why Compressor Oil is Important

Compressor oil provides:

• Lubrication between moving parts

• Cooling and sealing in the compression chamber

• Prevention of metal wear and corrosion

Without proper oil, the compressor can seize or overheat quickly.

Common Compressor Oil Types

Oil Type	Description	Suitable For
Mineral Oil	Standard oil used in older R12 systems	Domestic Refrigerators
POE Oil (Polyolester)	Synthetic oil for R134a and R600a refrigerants	Modern Fridges and Freezers
AB Oil (Alkyl Benzene)	Used in R22 systems and some commercial compressors	Window and Split Air Conditioners
PAG Oil	High-performance oil used in automotive A/C compressors	Car Air Conditioning Systems
POE ISO 68	High-viscosity synthetic oil for heavy compressors	Commercial and Industrial Units

 

Expert Tips by Fully4World HVAC

• Always drain old oil completely before refilling.

• Use fresh oil from a sealed container.

• Never mix two different oil types.

• For R600a and R134a systems, use POE oil only.

• Measure oil using a graduated syringe or measuring cup for accuracy.

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📌 Conclusion

Knowing the correct compressor oil capacity helps improve system life, reduce noise, and maintain proper cooling. Whether you’re repairing a home refrigerator or a commercial deep freezer, follow the recommended oil quantity chart above for best performance.

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