Air oil separator vs catch can?

[Jack.]

Was considering adding a catch can to my truck but i been reading up on a air oil separator and was curious if anyone is running one? apparently you dont have to maintenance them according to some random vids i was watching via the ones they put on the wrx. If thats the case i might just go with that instead of the catch can but yeah if anyone running one i would like some fee back.

Thanks!

 

[Rlaf75]

Aren't they the same thing?

 

[Jack.]

Aren't they the same thing?

I though they were but apparently they aren't

 

[Scram1500]

No maintenance? Where does the oil go?

 

[HemiDude]

Air-Oil separator is a little more complex in that it routes the oil back into the system.

Yes, you have to "maintain" a catch can by dumping the oil that is collected in it, but in many cases that literally takes seconds, and usually only needs done at the time you are changing your oil.

IMO a catch can is the better option for a daily-driver truck, and the less expensive alternative.