When to use Anti-Seize? What screws and why?

[MyEarsHurt]

I am done taking everything apart for my PI swap, and I am in the process of putting everything back together. Would it be a good idea to put anti seize on all of the screws or not? I mean, the screws that hold on the timing cover? Screws that hold brackets to the engine? I am just kinda confused about when to use anti seize and when not to use anti seize. Are there any places that I should AVOID using anti seize?

More or less, my understanding of anti seize is use it on screws that you dont want to seize up...so you use the anti seize and the bolts will come out easier when/if you ever need to remove them. Any help or opinions on this issue would be appreciated. Thanks.

 

[Mustang5L5]

Definitely around the water pump or any other bolts that may come in contact with coolant.

 

[MyEarsHurt]

So thats it? Only if they are gonna come in contact with some kind of liquid?

 

[StangPro]

Definitely around the water pump or any other bolts that may come in contact with coolant.

No. Do not use anti-seize there as it will contaminate the coolant.
You need to use a thread sealer on anything that threads into water.

The place to use anti-sieze is anything that threads into aluminum that sees heat that you aren't going to lock-tite, and on the spark plug threads (which thread into aluminum and see heat...)

 

[MyEarsHurt]

No. Do not use anti-seize there as it will contaminate the coolant.
You need to use a thread sealer on anything that threads into water.

The place to use anti-sieze is anything that threads into aluminum that sees heat that you aren't going to lock-tite, and on the spark plug threads (which thread into aluminum and see heat...)

Ok so then, anything that goes into the block, or the heads I should use anti seize? Including, timing cover, screws that hold intake to heads, etc.?