What kind of dope do you use

Stuff I used is Permatex, almost same as that one, but 'high temp' rated to 400 instead of 300. ( on slant, they all hit water)
here is what I used. Works great. Should be able find it at your local parts store.

http://www.permatex.com/products-2/...rmatex-high-performance-thread-sealant-detail