5.0 spark plugs
Mine is at 76,000, running great and has not lost mpg so I will go to 100,000 unless I see a need earlier.
I won't use anything but Motorcraft. Don't see how anything could do any better.
I won't use anything but Motorcraft. Don't see how anything could do any better.
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Jim
Jim



I'll leave now

Op, Definitely go with motorcraft plugs if you do change em.. But if its running good and no signs of needing it then i would wait closer to the 100k mark.


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Sounds good to me just big in to maintenance and making sure things are in good shape. Just haven't played much with these newer engined ya know



