I live in Turkey. I use the compressor for 38 years Kidde. They worked 500 hours in US Airforce aircrafts and scrapped but worked flawlessly for many years without any fault and have adapted to scuba compressor.
My compressor has a 220 V 3 HP electric motor / gas engine 5 HP with 3000 psi 100lt/minute . or 5 HP electric motor 380 V works between 2 Kidde's 200 litres air for a small group of divers.Maximum speed is 3150 RPM. 3000 psi. 20/50 engine oil to the compressors using
If you do not run the oil depends on time and missing or lean Kidde will serve you many years .
Currently I'm using Kidde compressor 50 years product and I am very happy with them. Made in Europe with many brands are doing or every 2-3 years, the fault must be sent to the service for maintenance, which in many parts has changed the price was high.However, kidee is trying but unless they are used for many years without any problems,
This is a solid product for the US Air Force proof made I have a lot of spare compressor and I have experienced as long as they were my children.