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- Mazda CX-9 Signature
True. It could be due to the routing. I know CS routes the occ differently and not directly from the pcv to intake. So perhaps there's a lot of condensation in that certain area. Either way I still think removing this liquid which otherwise will become gunk is a positive thing.Looks like 95% water, which to my point means the catch can didn't catch much oil, which is ostensibly, the reason you go to the effort of installing one in the first place.