2015 2.7, spark plug change interval

The maintenance schedule that came with the manual doesn't mention at what point the plugs need to be changed (or I didn't see it after looking a few times). It does say to change them at 30K for the 4.0, but nothing for the 2.7. My 30k service is tomorrow. When do the plugs get changed out on a 2.7?

 

I change mine every 50K with iridium on my 2.7L.

 

I believe it's 100k. I'm @80k and just ordered a set of densos.

 

Either 100k, or 120k, it in the service schedule.

 

Wow, it is 120. Didn't look that far in the book. Thanks much.

 

Iridium tipped plugs. Iridium doesn't wear very fast due to the extreme hardness.

 

It's Iridium at 100,000

 

Got it. Thanks very much.