Anti seize on spark plugs in aluminum heads?

RustyRatRod said

The silver is being phased out and being replaced by copper.

To your question sir, yes, I use anti seize on aluminum or iron heads.

Click to expand...

Depends what "silver" you are using. This is nickel based with no lead. I've just gotten acclimated to using it after 40 years in steam turbine maintenance and that's all I use.

https://www.saftlok.com/safteze/tds/TDS-Nickel_Grade_Anti-Seize.pdf