Hello, I'm Danny.
Yes, I would use a small/thin amount of RTV sealant in addition to the gasket to prevent leaking.Here is a tutorial showing what is involved:
I've attached a few pictures of FEL-PRO brand gaskets to use.Hope this helps and thanks for using 2CarPros.
Image (Click to make bigger)
Saturday, May 18th, 2019 AT 12:08 AM