As I understand it the maintenance schedule calls for changing out the spark plugs on this engine every 100K miles. I have 99K+ miles so I guess I'll change them out. I have several questions for those of you in the know on this subject. First let me state what I believe I've learned so far. Correct me please if any of this is wrong. A. Use Motorcraft plugs. They perform the best in this engine B. Torque plugs to 13 ft-lbs (156 in-lbs) C. Use dielectric grease in coil boots D. Torque coil pack to 4 ft-lbs (48 in-lbs) E. Do not use anti-seize grease on plugs (it is not necessary) F. Moving fuel rail is not necessary (use universal joint and 6" extension) G. Use air pressure to blow dirt away from plug holes before removing plugs Okay, here are my questions: 1. How do you remove the coil packs? What tools are needed? 2. What gap should the new plugs be set to? 3. Are all the plugs easily accessible without being a contortionist? 4. Is there anything else that needs to be moved out of the way? 5. How long did it take you to change your plugs on the 4.6L engine? Can someone please expand on this process? What am I missing?