Yeah, call them when you encounter one of their plugs that’s stuck. See how much “support” you’re going to get.NGK specifically says not to.. During my phone call with them to verify a plugs authenticity, they specifically told me they have a plating that is designed for them to "go on dry." He corrected me as well.. Plating, not coating.
Option #2 is Technical Support at same number. That one works as well.
NGK CUSTOMER SERVICE
1-877-473-6767, dial #3
hours: 8:30am – 5:00pm
Monday-Friday EDT
https://bobistheoilguy.com/forums/threads/fake-ngk-plugs-on-amazon.355044/page-3#post-6412804
So. I'm in the "They go on dry" camp.
Their recommendations are to protect them, not to make your life easier.