china wall sealant??

A lotta customer oil leaks were caused by goop .
If all gasket surfaces are properly clean, tin surfaces ( pans, valve covers, etc) with volcano cones where fasteners have distorted the metal, - pound them flat.
Factories didn't use goop, in fact, silicon has a very low Cofriction, and if the " bond" to whatever surface breaks cuz someone goes around "snugging" pan bolts, will very likely break that bond/seal to whatever surface, squeeze out, or turn to jelly, and leak.
GM tried using silicon (GMS), orange ****, turned into one of the biggest recalls GM ever had.
Replacing the silicon goop on trans pans. Oil pans, valve covers, everything gooped got a replacement gasket.
3M weatherstrip glue ( contact cement ) to hold gasket in place, pea size dab Right Stuff where gaskets meet/overlap.
That's it.
Smear silicon on each side of the gasket, watch it squeeze out.

Felpro brought out a gskt set to use with alum manifolds with the cork end gaskets 1/2? as thick as the originals that folks found too thick.
These gskts are also easily trimmed with an zacto knife to match ports.
Use these proper gskts insteada chugging a maybe in-adequate bead of jelly, if properly placed without pins.
Folks here now are re-doing the silicon china walls.
Tossed all my "RTV" in the trash.
With Right Stuff, chugging a huge bead isn't nec.
Good luck .

P.S. we has a thread here not long ago about low oil pressure.
The oil pick-up screen was full of pieces of goop !