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Motorcraft Finewire platinum spark plugs

2512 Views 4 Replies 3 Participants Last post by  chikoo, 
chikoo
I replaced the factory spark plugs at 75K with the Motorcraft Finewire platinum spark plugs. At 109K they were bust....all burned down.

Is that how much they are supposed to last?

:huh::angry:

Will post pictures if you need it.
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chikoo
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chikoo
Drizz-OH said:
Ewwww. IDK how long the Finewire ones are supposed to last. That's gross tho, what were they gapped to?

I have some NGK Iridiums for sale..... ;)
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IDK. They were replaced by Mazda Dealer at 75K while replacing the PCV on the engine under warranty. :)
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