Ive heard ppl saying to put this on O2's...do I need to put them on my plugs before I install them? If so, what is this stuff?

 

All it is is a compound that you put on the surface or threads of a part that prevents in from seizing to the other part that it comes in contact with....hence the name 'anti-seize'. Some people use it on spark plugs, some don't. I would use it on an 02 sensor just cuz those are a bitch to get out sometime.

It just prevents bolts and surfaces from 'sticking' together over time from rust or just from heat and such. I would use it on all exhaust bolts...I would also recommend using it on the back side mounting surface of aluminum wheels. The wheels often stick to the steel drum or rotor making it difficult to remove the wheel.

 

I use antisieze on any bolt or part that does not match i.e steel bolt going into aluminum, or vice versa just so it does not rust or makes it easier to get out the next time I need to.

 

Yes, use it on your plugs. Check in the section of the autoparts store where they stock the Permatex sealants, thread-lockers, etc. You just need a small tube of it. Its also great on wheel studs if you change the wheels/tires often at the track. On O2 sensors, new ones come pre-coated with "conductive" anti-sieze, to insure there is no loss of electrical continuity because of the compound.

 

Yes, put it on there. Be caruful though, as too much could foul the plugs. You only need a VERY TINY amount . Just put a small stip on on side of the plug vertically, and that'll be enough to cover the threads.

 

I suggest using it also. Just be careful, that stuff will be behind your ears. It gets everywhere, even using a little dab.

 

BTW if you are installing an oxygen sensor, GM makes a special antiseize just for this that contains glass beads. I suspect that the heat might be too much for the regular type compound. If you don't use it, there is no guarantee you will get the thing off a second time and the formula is oxygen sensor safe.

 

That's good info. Thanks.