spark plugs in the 5.4 narrowed it down to 2 maybe 3
#25
^ Hang around a while. The Champion plug issues have covered everything from misfires to breaking. Glad they're working out for you, but many on this and other forums have nothing but issues with them. PS you can also go back and edit posts instead of posting four one liners.
https://www.f150forum.com/f4/champio...st-read-12087/
https://www.f150forum.com/f4/champio...st-read-12087/
#26
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Join Date: Feb 2012
Location: Byron, GA
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from what I have read, the champions are good for 10-15k then crap out. Im going to go with some motorcrafts, its oem and when you go with oem, you cant go wrong
#27
Senior Member
Those Champions may be OK now but forum history suggests that they are not worth it in price or quality.
#28
DIY
ill check mine soon to see how are they doing. one of the many advantages of having an spark plug that i can remove and examine without having to worry if the spark plug will break...
#29