Cas:

WE have a kaeser rotary compressor that is currently using 205 L or 45 gallons of per change. This unit runs all the time. What I am looking for is if the oil must be kaeser M460 oil or can we use imperial oil, shell or any other brand of oil that meets the “46” requirement. Also at how many hours should the oil be changed. Imperial has 8000 hours or basically once a year. Is there longer life oils or “better” oil I should be looking for?

Thanks

Bruce