Does air compressors designe for small portions of oil leak?

[JMBT]

Vlad, your air compressor is not supposed to push any oil into the air system. Does it show up anywhere else? Glad hands, or when you pull the drain cords on your tanks? I don’t know how much if any oil would be considered “acceptable” (feel free to chime in guys who know more about it then me) I do know you want to change that filter cartridge as soon as possible! Use the good oil coalescing filter. It is designed for the new EPA-shi#t, disaster engines, not the cheapy desiccant only filter. After you figure it out and get the system cleaned back up, which may take a few filter changes in short order, then start changing that filter as a regular maintenance item. I do mine every fall in prep for winter weather.