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I just swapped my supercharged motorcraft H20's last weekend. They had been in the car for 5 years. I was nervous even though I had installed them with some nickel antiseize but they all came out fine.
I also installed Champions 3 years ago. No problems at all with codes or acceleration issues and no sick feeling when I take them out. I did mine myself with no breakage. Take your time and follow the TSB.
Yep, same Champion spark plugs with 60K miles and about 6 1/2 years worth of wear, no problems and I have taken a few out randomly over time to check for wear and such.
Strange to have an '08 with the 2 piece plugs. I thought they 'fixed' the problem in late '07 but the black COP's indicates the 2 piece design I believe.
