It's the factory setup.@ Wolfgang- is your crank case vent a closed loop design from the factory or did you install that hose yourself so as to minimize odors?
If so be careful if you live or store your compressor where any moisture in the hose can freeze and form a vent blockage. You’ll have oil leaks all over, then
It'll be stored inside from mid-October through mid-March, & rolled outside when it's time to fill. Wife owns & operates a seasonal business (dairy bar- ice cream, burger joint etc.) & we use most of the garage free space to store supplies like cups/lids, forks/spoons, straws & such from late March through the end of September.
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