If you like to chisel for disassembly use the right stuff. lol
I like Permatex ultra black, it's oil resistant and seals good and easy to remove if needed.
I use Maximum Oil Resistant Black RTV by Permatex also. Never a leak, and pretty easy to take things apart and clean up. On freeze plugs, and T-stats I use Ultimate Grey Permatex RTV.. love the stuff.
