Originally Posted by JKW
If you don't mind spending the money (six or eight bucks) Tri-flow is the slickest lube I have found for this application. Works great on the delrin bolt too and in fact has been the preferred lube for Intimidator bolts by all of Bob's techs for years.
I could have sworn that I was told to keep oil away from the delrin bolts. And that oil causes them to swell.