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I went with the champion brand spark plugs because they are one piece and won't break as easy as the motorcraft and that's what everybody has been having problems with. The champions cost a little bit more but you won't have the hassle of broken plugs
Champions are hit or miss.. Ya they are one piece, but i would rather have a good quality plug then one that can foul easily.. Plus as long as you put the antiseize on the new motorcraft plugs you will not have the same problem getting them out the second time
Ford Plugs!!! They are the right heat range and gap!! and made to last 100,000!
I work in a dealer and I dont know how many times a f-150 come in with the cell on for a miss fire. O look after market plugs from canadian tire
By application after market plugs would be the proper heat range and you should always inspect the spark plug gap before installation. I always put a little bit of anti-seize on them before they go back in, just good practice. Usually when you see cyl miss fire that I have found is when ppl but non platinum or non iridium spark plugs in when the vehicle originally came with them from stock. Ps. Autolite makes motorcraft spark plugs just FYI. Motocraft plugs a a good choice tho.