Don't apply grease unless you want to set your nuts on fire.....then you may as well go the whole hog and do back, sack and crack.
Hang on, I think this topic has drifted.
Anyway, if you do apply heat to your nuts and grease them, don't forget to give them a good wrench around. You may want to get a big strong man to help you with that bit. I've generally used Andy Kindon, he's canny good at winding your nuts off.