In most cases a new gasket is required, but no sealant.
none. if you use a gasket dont use sealant. Also never use sealant on a automatic trannsmission. It could damage the tranny and will not last.
Never use sealant for a head gasket! It is used as a quick fix for cracks in the gasket but will not last very long. Safer to get the job done correctly.
you should never use a sealant on a head gasket as that is only a temporary fix in an emergency situation. The only permanent fix is to replace the gasket.
no gasket sealant needed. Just original gasket is fine.
no u dont need to use sealant u should get a gasket
If both surfaces are clean and flat and you are using a new gasket, no sealant is necessary.
no, use rtv sealant
NO. You should NEVER use any type of sealant on the transmission pan.
When using a new pan gasket, no sealant is necessary. Using sealant on a automatic transmission pan gasket is a bad idea, excess sealant can cause trouble.
Sure. 100% silicone can be used. The sealant is not necessary as the gasket does the sealing anyway. the sealant does help hold the gasket in place for easier installation.
Depending on the exact engine there may be a gasket for it. If not it may be a sealant like gasket goo. -I am unclear on that term 'cylinder jog'. but most crankshaft bearing surfaces should have a gasket, rather than a sealant.