mineral oil
The compressor oil
Oil in a AC compressor is there so that the mechanical parts don't over heat from friction
To prevent wear on the compressor.
freon and oil
It's a Lubricant. It lubricates parts.
ACID
freon and oil
Ice
Floc in refrigeration oil is wax that has separated out from oil containing parathene.
Sludge in a refrigeration system can lead to reduced system efficiency, decreased cooling capacity, and potential damage to components such as the compressor. It can also cause blockages in the system, leading to uneven cooling or system breakdown. Regular maintenance and proper filtration can help prevent the formation of sludge in a refrigeration system.
Oil
Polyester (POE) Oil