Originally Posted by
ochsnm00
I used the Permatex as suggested and so far it is holding. I had never heard of Ultra Copper.
Terrific stuff. McMaster Carr sells it for around 7$ a tube. It is high temperature silicone sealant with a twist... It resists gasoline exhaust great. I used NordLock washers several years ago along with the PUC, but have since moved away from NordLocks favoring PUC alone.... NL not needed. Try it...