Curious what micron rating of oil filters others use.
I currently use the compressor package manufacturer's recommended micron rating on my screw compressors. I have filter salesman wanting to sell lower Micron ratings with the sales pitch of benefits. I have attended a couple of hydraulics classes and I can see the benefit of lower micron rating and cleaner oil for hydraulics which then makes me think about internal of compressor and oil on journal bearings etc.
What Micron rating do you use and thoughts of lower Micron ratings?
Thanks