Hi I'm new here and I have been reading about oil catch cans. What are these and how do they work. Thanks for your help.

 

they are cans usually metal that have an inlet and outlet. they usually have a gizmo where you can see how much oil is in there

the valvecovers vent air in and out and are hooked up to the intake on the clean air side. sometimes oil gets in there " blow by " is caused and thats what you are trapping. its good to catch it because it doesnt make your car run great, and you wont pass smog as easy here in CA

it goes inbetween the valvecover and intake.

 

I get alot of oil in my pipes, I just installed mine hopefully it works good

 

Don't hook it up to the crank vents after the PCV valve because I tried, and there is barely any oil vapor there. My valvecover vents seem to have more oil vapor. After an oil change or two, you'll probably see the hoses get dirty (if you have clear hoses)