Using the right air compressor oil for your compressor is very important. This is true for both rotary screw air compressors and reciprocating compressors. You can’t just use your cars oil or hydraulic oil!!!!! Compressor oil has a few important functions:
• It removes heat from the compression
• It works as a sealing to prevent air leakage.
• It lubricates all moving parts
• It’s used to cool important parts of the compressor element.
Air compressor oil is specifically designed to do the above jobs well. If you would use oil from your car, your compressor WILL DIE!!
Compressors (and the oil) can get very hot.. normal maximum outlet temperature of a rotary screw compressor element is set at 120 degrees Celsius (if it gets hotter than this, your screw compressor will shut down).