so a properly working PCV system is crucial to proper performance, and well function of the car. I would NOT want my catch can to be my work around, but a failsafe. So Ford trying to fix issues and your ability to either match their best fixes is crucial other issues dont develop.Ok so I have been doing a bunch of reading and digging through the forums and this is where I think I am at. Right around 2015 the valve covers on these engines were changed over to a plastic design. I believe this change was made for a PCV system revamp. But there was also a TSB about a revised plastic cover for the firewall side. So what came first? The new plastic covers? Or the TSB for replacing the old style Magnesium cover for a revised plastic one? And then on future models they just went all plastic for both heads?
Then there is the next question that arises from the research. If the valve covers were changed in an attempt to revise or improve the PCV system because of all the blow-by and oil build up on the valves, then does it matter to me? By that I mean, I have read that a catch can is pretty much a must and am thinking I have to get the UPR setup. If I am running the UPR setup then does the version of PCV system in the car even matter? Is the UPR really making the difference so that the cars PCV system is less of a factor?
Thoughts on this?