So i took off my manifold and cleaned the intake valves on my 5.0

[coatseast]

Well, I guess it depends on exactly how much oil the CC actually catches and holds vs what may seep by? I get maybe a couple of ounces in my cans at oil changes which I normally do at 4000-4500 miles. I installed my CCs when my G70 was still fairly new with very low miles. I’ll measure what I collect at next oil change. I’m also assuming as the engine ages some the amount of oil mist traveling thru the PCV system slowly increases so more oil would get collected, or lacking a CC more oil gets burned back thru the engine The proof will be in a few years I borescope the induction system to see what the valves look like? CCs are a preventative item, certainly not a make or break item for most people change their cars every few years. My Infiniti was 9 years old when it got hit and totaled and my Mazda convertible I still drive is 15 years old if that gives you an idea how long I keep my cars. I’m the anal retentive type who takes very good care of my cars so keeping excess oil out of the intact system was worth it to me.

So its been almost 2 years. Would love to hear an update of the impact on your induction/injection system. What mileage did you put this in? And I don't think it has anything to do with it but has it had any impact on the soot build up on the exhaust common to the GDI 3.8 engine?