no its not
I my self would not, That's what gaskets are for. unless there is some inperfections were the gaskets go,if there is use a small amount of sealant only. and be sure its OEM sealer. And install gaskets.
Never use RTV on a head gasket. Use a spray type sealer.
You need the sealant on the ends where the supplied gaskets don't cover fully.
gaskets exist to eliminate the need for adhesive, you do not need to glue them
Nope. The intake doesn't get hot enough to activate the clogging portion of the sealant.
No, just under and above the intake gaskets.
In most cases a new gasket is required, but no sealant.
have the heads pulled off and checked for cracks have them resurfaced and sand the block until it looks new. then replaced. gaskets with several layers of sealant on them.
Thermostats in most vehicles have seals and gaskets that are designed so you do not need any aditional sealant.
NO. You should NEVER use any type of sealant on the transmission pan.
The seals go on first, then the tabs on the ends of the gaskets lay in the channels molded into the seals. A little dab of RTV sealant on each corner helps to avoid leaks.
Not that I've heard of. Replacing the gaskets and inspecting the manifold for warping or cracks is the best way to stop intake vacuum leaks.