Bryan 93
Proven Member
- 99
- 12
- Nov 5, 2013
-
Mentor,
Ohio
Anyone ever try using an AOS (air oil separator) on a DSM? They are pretty common to the Subaru community. I am pretty surprised most just go with a catch can that vent with a small filter on a DSM. I always thought the vacuum was useful in helping to seal the bottom end. Any thoughts?