What do the pros use?

[tonychilton]

I'm curious what professional teams like Indycar, F1, Nascar etc use as a gasket sealant. I'm sure they use several kinds for different applications. Are they different from what are available to us?

[Fred Michael]

We use very little is the way of gasket sealants. For that matter, there are not a lot of gaskets on Indycars or Formula E.
We do use small amounts of silicone on a few bolts.
We use a loctite on many things.
What we do use are the same things that anyone can buy..