Should anything be put on the threads or when installing new Oxygen Sensors

 

I use some anti-seize.
I use Never-Seez as it's metallic so no conductivity issues, heat or otherwise.
If you do, you need to be very careful you don't get any on the probe.

 

Every O2 sensor I have ever installed has come with anti-seize already on the threads.

 

Dido on lordmorpheus. My 3 new Bosch O2 sensors came with silver anti seize. I added a little more on the threads. I think it burns off after continuous heating & cooling, but oh well. It did aid to start the thread on the new sensors.

 

The 02 sensors that were just put on my truck had anit-sieze already on the threads