I have never heard of putting it on the rotor tip and I don't think I ever would.
Take a screwdriver, put a little bit on the end of it, then take it and swipe it on the inside of the boot that goes over the spark plug. (to ease the instalation and REMOVAL of the boot on the spark plug) Put a touch of it in the outside of the wire also where the plug boot slides in it (again to help the spark plug boot slide on the actual plug wire and again to aid it in removal at a future time. Do the same to the dist. cap ends.
