I should see the stuff it filters out? LOL!
First, I'll point out that Corksport's test was done on a modified engine, not stock. The engine has a short ram air intake, larger diameter down pipe, larger diameter exhaust pipe, intercooler, boosted turbo pressures and who knows what else. So, yes, if you screw up the breathing characteristics of an engine enough you can get it to burn dirty, cause water condensation in the crankcase and generally foul everything up. The test vehicle is so loaded up with unrefined Corksport mods it's no wonder it doesn't burn cleanly. Besides, the test vehicle was a Mazdaspeed3 turbo - not exactly Skyactiv technology we're talking about here - apples to oranges comparison in all respects.
So, no, the advertising photo does not convince me that my CX-5 would run better with an oil catch can. In fact, it reminds me of the vacuum cleaner salesman that visited my house as a small child. He put a white piece of filter paper in his vacuum and went around our (very clean) house sucking on the couch cushions, carpets, etc. When he pulled out the (now black) filter paper my mother was horrified and purchased his (very expensive) vacuum on the spot. Of course, his vacuum didn't work any better than our existing vacuum, he just applied the vacuum to a smaller surface area. Who vacuums their entire home two square inches at a time? But it sure made for a nice sales commission for the salesman.
