[cstreit]

I've always used the red "tack-sealant" common to older car valve cover gaskets on just abot any "cork" gasket I've worked with. However it does harden and if I can use Curil-T on something, I prefer it because it is easier to work with, doesn't cure, reducing the risk of hardening up in some oil passage somewhere.

OTOH, I've STOPPED using Curil-T on certain things like flywheel seals, etc.. because it has a strong tendency to allow the seal to push out.