Well, that's what the Dealer said. I don't doubt they might be able to scrounge some from another dealer if they were interested.
Still a good idea that someone goes in and breaks the plugs loose, then re-torques them. Leaving plugs in aluminum heads for 100,000 miles has been an expensive venture for a lot of folks when the threads the plugs were stuck to get pulled out. Plugs are usually steel, heads are aluminum these days. Current theory is to use anti-seize on replaced spark plugs.
It's smart, when replace spark plugs, to have the car warm, not hot or cold. No need to put anti-seize on them, but some will put just a very small amount (like Permatex) on the edge of the plug where the coil sits (the white ceramic part.) One caution for everyone who replaces plugs is to GENTLY remove the electrical clip from the coil because the plastic gets brittle over the years. You have to squeeze one side then pull it off. It's smarter to use a little metal pick tool to lift the side on the coils up while squeezing the other. Having one break on you is a nightmare.
Mines 5 years this past June. Resistance is getting high but its still testing good. Ill ride it till it dies since i have a portable jump pack and im curious how long this thing is going to go lol
