oiling plumbing/teflon tape useage?

I am going to add an oiling gallery bypass copper tube (1/4 NPT/3/8 tubing). the guy made no mention of useing this tape but another vid swears by it for no leaks (tho it was a water pipe plumbing app). I'm a little skeptical of it as I dont want to contaminate my oil but I thought I'd ask, use it generously on the ferrule like they did in the plumbing vid) and or some on the NPT threads. what do you guys think? thank you for your time. RR