I would put teflon tape on any adaptor pieces like the fitting that screws into the turbo, like I mentioned. Yes, the Earl's fittings are supposed to be self-sealing to the lines and to other Earl's fittings. If the welded fitting in the pan is an Earl's fitting, and you're screwing another Earl's fitting onto it, then theoretically, you shouldn't need an sealant. You may be thinking of blue Loctite, which does not harden as much as red Loctite, and thus comes off easier. I still wouldn't put that on your fittings, though. You may want to try some Permatex or Hondabond silicone sealant, just a small amount on the very end of the threads to seal them, yet still be pliable enough to come off easily.