Just to let everyone know. My 2005 5.4L hit 85k and I decided to change the plugs. Every one of them came out fine, no breakage! I have been so nervous about this. I went against the rules and used a tiny bit of WD-40 and all is fine.

Thanks for all the write-ups!

 

I just used a pry-bar and an impact wrench and mine came out fine.

 

Techron and an impact zip zip.....

 

Pry bar?? I have thought about trying it with an impact...

Congratz on the plug change!!! I hope to have that kind of luck with mine!

 

I kid. I kid.
I would never use an impact wrench or pry bar for my spark plugs!

 

No pry bar, but an impact is what I intend to use when mine need changing. And NO, I'm not kidding.

 

Woah! I didn't expect for Mr. No Humor to chime in. (No offense)