Originally Posted by
xintersecty
This might be a just a dumb question but I am going to ask it. How do you empty the catch can? Considering the drain is at the bottom and buried in the engine compartment, is just a matter of pulling it out when you do an oil change and hope it drains out?
As you said you remove it from the car at oil change intervals and drain the can from the bottom. There is a cap there that unscrews. I put a small o-ring inside the cap to help make a good seal and when I drain the can I will spray brake or carb cleaner into it to help it drain and clean the inside. Be very careful with the mounting screws; Dropping is a one time thing because they disappear down a bottomless hole.