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[2smoke]

Dudes,

I need an opinion from those in-the-know.  When installing/re-installing your oxygen sensors do you put anything on the threads of do you install them dry?  If the sensor is grounded through the threads I could see the reason for installing them dry but if you are the kind of guy that likes to swap exhausts often I could see putting some anti-seize on the threads for ease of removal.  The MoCo puts them in dry.  Are lubing her up or doing her dry?

[sadunbar]

I install 02 sensors with an anti-seize compound...

[SBB]

I install 02 sensors with an anti-seize compound...

Same here!
And apply it generously.

SBB

[StrokedRider]

Same here!
And apply it generously.

SBB

X2

[Dr.D]

Doing it dry just plain sounds bad mate. Lube-er-up.

[Twolanerider]

Anti-seize.   Most OE will have the threads pre-coated when you pick up replacement at the parts store. 

[mattm]

Not just Anti-seize, but copper anti-seize (higher temp rating).

[dlaws01]

Not just Anti-seize, but copper anti-seize (higher temp rating).


The correct answer!

[ssls6]

I use nickel based anti seize and I try to keep it off the tips, just the threads.

[grc]

Last time I looked, nickel rich anti-seize compounds tended to rate much higher for temp range than copper products.  I think the copper stuff is rated at up to 1800°F, whereas the nickel stuff is rated as high as 2400°F.  What you don't want is the zinc rich stuff, which is only good up to 750°F.


Jerry
 

[digga25]

Got to use the anti seize like everyone says.When I changed my exhaust from stock the threads came right out of the headers from being put in dry from the moco.

[Steve Cole]

Whatever anti-seize you chose to use make sure that the can says O2 SENSOR SAFE. Most types have some lead in them which will kill the sensor in short order! This is why you have to use the O2 safe  one's.

[Twolanerider]

Ok, here's a specific suggestion.  Permatex 09128 is what I keep around.  It's a copper and is sensor safe.

[sadunbar]

Ok, here's a specific suggestion.  Permatex 09128 is what I keep around.  It's a copper and is sensor safe.

Same here...

[cvobiker]

Whatever anti-seize you chose to use make sure that the can says O2 SENSOR SAFE. Most types have some lead in them which will kill the sensor in short order! This is why you have to use the O2 safe  one's.

YES - Good catch Steve,,, very important to follow.  I found this out the hard way....in fact this is the only time I personally experienced a failed WB sensor...