I’m not a greeny ( says a guy born and still living’ on the left coast) but….

If it Better for the engine AND better for the environment why would you not at least consider adding it, cheap and easy to install..
I’m up to the fire up and final (vacuum) test stage on the install on a 235 hi pressure….

Link to my install:
https://www.stovebolt.com/ubbthread...th-non-pcv-valve-covers.html#Post1538639

Chuck

Hank: 46 Chev 1/2ton shortbed
2023 Miata RF Club