This is the part that I have a hard time understanding...do all engines have this oil vapor/mist build-up? If that is the case, then should all vehicles have this can? Or is this buildup specific to this particular engine setup because of the faulty cover/AFM system? I'm sure this has been explained multiple times on here, but please forgive my obtuseness, as I'm only able to pick up bits and pieces of it since I haven't done any mechanical work myself and trying to fathom all the info without firsthand experience is difficult. But I've owned many vehicles since I've been driving and I've never known of this to be something that is needed.
If I have the new valve cover (which I don't know) and if I have the AFM turned off (which I do) how do I KNOW if the catch can is something that is really going to be that much of a preventative measure? Or is it overkill? I understand that if you can't get the valve cover replaced and IF that is causing some of the buildup, than the catch can can help until you can stop the the cause of the build up. Bottom line... what normal, regular maintenance that would be done to this engine would give us an idea if we are having any buildup that requires the use of this can? I'm just having a really hard time convincing the husband to add another item onto this engine without having any idea whether or not what it's designed to prevent is even an issue in my engine. Or is it really just a piece of "insurance," so to speak...
Again, I apologize to those of you who have already explained this in multiple posts, but I'm still needing something more concrete to give to the husband to convince him this is something that is needed, rather than "just in case."
Otherwise, I have an inexpensive eBay knock-off that I can sell to you haha
Are there some people that have never used the catch can on their 2007s who have not had any problems with this buildup?