Not long ago I did a plug change on my wife's car with aluminum heads with over 100,000 miles. NGK plugs were in it and they say they have a coating already on the plugs, so you don't need neverseeze. 20 FT. Lbs. without, but if you use it, 15 Ft. Lbs. with neverseeze.
Of course I used Kroil penetrating oil to get them out. Not chancing their film. They were tight. You don't want a hot plug, and take your time. Warm it and cool it, no problem. Seems like I was brought up on neverseeze and the orange can, Kroil.