Originally Posted By: mechtech2
Use whatever anti seize.
But don't let it get on the sensor end in any way!
Actually, the sensor had some antiseize smeared on the end of it from the plastic packaging. The AS had rubbed off from the threads onto the plastic, then the plastic smeared some AS on the end of the sensor. So I cleaned the AS from the sensor end with some brake cleaner. Fortunately, it appears no AS got into the holes on the end of the sensor. Should I be OK, or do the holes have to be cleaned with a Q-tip and brake cleaner as well as a precaution? I have never worked with an O2 sensor before, so this is all new for me.