You can use engine oil as per the specs 5-40 iirc it's what I'm using as I have a bit already, compressor takes 300ml. Triggermortis ring that company and ask the cfm of that unit (fill rate) as you will be waiting for ever and a day to fill it. Reading is bar is much lower than pcp and if you set it the wrong way, you will end up with a busted pcp.

When tested, the Air Rover was able to fill a 216cc cylinder on an Air Arms S410 Classic from 90 Bar to 200 BAR in as little as 4.Noise 78dB Compression Level Two Stage Cylinder Material Stainless Steel Cover Material Cast Aluminum Air Flow 8.

PREMIUM QUALITY: Designed with two-stage compression and two water-oil separators for performance stability. So currently I have tested that the compressor works, Is as Noisy as expected, have my bucket of water ready for cooling and Now await the arrival of the adapters. Oil free breathing air compressors equipped with membrane and AC filtration specially designed for the surface provision of breathing air for diving/ submersible applications less than 15m depth.

Following the instructions, I removed the travel bung from the oil tank and added about half a liter of Mannol compressor oil ISO 46 to just above the sight line clearly marked. Please Note: standard filler probes can be used via a quick fill which is not included with the compressor.