Storm L4-1600cc 1.6L DOHC (1991)
Refrigerant Oil: Service and Repair
Compressor Oil Contamination
Unlike engine oil, no cleaning agent is added to the compressor oil. Even if the compressor runs for a long period of time (one season), the oil never
becomes contaminated as long as there are no compressor malfunctions.
Inspect
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For increased capacity of the oil.
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For compressor oil color change to red.
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For foreign substances, metal powder, etc. in the compressor oil.
If any of the above conditions exists, the oil is contaminated. Whenever contaminated compressor oil is discovered, the receiver/dryer must be replaced.