Thinking now, I may have ignorantly used the gray paste for the same
application.

My understanding is that the gray stuff is to prevent corrosion due to
dissimilar metals. The copper stuff is for high heat similar metals so
that stuff should be ok?

Image of the type of stuff I've used on spark plugs:

http://www.etrailer.com/Merchant2/graphics/00000001/pics/L/T/LT37616_2_1000.jpg

Neil.

On 11/14/13, Tom Buese <tantonbz@gmail.com> wrote:

> I have gone thru the archives on how to keep my new O2 sensor from rusting
> to the manifold & only see threads(pun intended) about using a special anti
> seize made for that & in another calling for copper based.  Is this
> correct, & if not what?

--
Neil n

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