Anti seize on spark plugs in aluminum heads?

JBurch said
Decades ago I pulled the threads out of one of the aluminum heads on my Subaru because the threads on a plug seized up because I did not use antiseze; since that time I have been a dedicated user. I can't quite understand why you think you don't need it.

What ever you do good luck.

Same thing happened to me, made me a believer. It usually happens when you buy a used car and go to change the plugs for the first time. The previous owner didn't bother to use anti seize and you end up stripping the treads when you remove the plugs. Helicoil and then anti seize.