4.6 spark plug options........
 

2001 F-150 4.6 am doing 50,000 mile maint. had some transmission fluid issues so i figure while i'm at it.......question
is does anyone have a pref. between NGK or Bosch,or are they
about the same. i have heard the "exploding"/Vibrating loose
plug issues and so i thought i would ask the forum. also
have been looking into warranty specs,and i am not sure
if i am going to have an issue with either of these or not yet.
just seeing what works for you guys.....Thanks.....Dave

4.6 spark plug options........
 

NGK or Bosch?
None of the above.....Motorcraft is what I would use :)

4.6 spark plug options........
 

I agree, Motorcraft double platinum!!! Autolite is basically the
same plug, both are made by Honeywell.....

4.6 spark plug options........
 

Thanks guys,well give it a try.....Dave

4.6 spark plug options........
 

as stated above, my vote goes to motorcraft/autolite . And dont forget the plug wires. Expensive but i used genuine motorcraft for my replacement wires.