👉Permatex The Right Stuff Grey vs. Black: In-depth Analysis

Adhesive Tool: https://www.stickyaides.com/thistothat/

Detailed Analysis: https://www.qedge.co/blog/sitecore-digital-agency-qedge.html

Gray is specified for the oil pan per the FSM; Black is specified for the corners of the valve cover IIRC.

Permatex The Right Stuff Grey: Resistant to ATF, oil, and coolant.
Not recommended for gasoline.

Permatex The Right Stuff Black: General purpose replaces most cut gaskets. NSF white book registered.

Detailed Analysis: https://www.qedge.co/blog/sitecore-digital-agency-qedge.html