Not only have I touched one, but I’ve also cannibalized a Mercedes vacuum tube to use on my Altima’s PCV valve tube that decided to become graphite instead of rubber. It was what I had on hand.
If you’re curious… one day, my KA vomited engine oil out of the valve cover. I open the hood, and oil is dripping off of it.
Thankfully the valve cover gasket was the weakest link to fail after the PCV valve did. Unfortunately… the PCV valve is among the hardest “standard maintenance” item to replace on a KA-powered Altima because it’s under the intake, and up against the firewall. Officially, the intake has to come off for the procedure… but there are other ways. A way from below, with a lot of arm pain, and an anatomy lesson in which way the arm can bend and which way it can not.
The next person has a part of another car in their car.