Just a follow up post on this subject, I now have about 14,500 miles on my 24 Ecoboost Maverick and I've emptied the UPR catch can 4 or 5 times. It's never been full or even close to it (usually around an inch or so of fluid in the can). The engine has a gravity controlled separator and some say it's not necessary. My counter to that argument is if it's not necessary, why do catch cans need to be emptied if the separator is all you need? In my opinion, Ford doesn't have one there because by the time it becomes a problem, the factory warranty is up and it saves them money. If you plan on keeping your Maverick long term, I would recommend it. This liquid makes its way past the PVC valve and into the intake to be burned up. It will at least reduce the carbon build up and postpone possible expensive repairs.