Consider using a combination of heat and penetrating oil to loosen it up if it's seized. Easy out is the tool to use, but they also have a tendency to expand the plug as they dig in which can work against you. If you can help free it up with some GOOD penetrating oil (fluid film or something, not WD40) the easy out will work better. Good luck!
2004 Imola BMW ZHP
2006 Commander Limited Hemi QD2
"Bought, Not Built"
I ended up breaking 2 spark plugs before it was done. The first came out easy with an easy out. Thanks for that tip. I bought an easy out set at Auto Zone for $10 and the biggest fit perfect. I use a 16 point socket on the end of it and taped it so it stayed attached.
The second broken one was very stuck. I couldn't get the original easy out out and was going to try a different one so I didn't have to buy another set from autozone. The second tap looked very simular size from the first but for some reason the first one really locked on. I didn't chance it and bought another set to get the big one. Using my torque wrench I applied much more force on the second than the first and it didn't budge. Out of fear of breaking something else I just held at a steady high force and didn't keep pushing harder. Took about 2-3 minutes of heavy pushing for it to finally break loose.
I think the combination of buying this jeep from the east coast in 2005 and still original plugs at 105000 miles was the culprit. The new plugs now have anti seize. I will see how that works at 200k in another 10 years.
The old plugs I measured the gap at .050 and they still had a little bit of electrode left. New plugs gaped at .040.
also.. something i didnt do because i spent so much time on #8.... I put the dielectric grease on the inside of the coils... i didnt put it on the outside as well...... put it on the outside of the coils to prevent sticking.. and as monger said, the silver stuff works fine, its better than absolutely nothing on those threads.