Having seen this post I posted on 9/4/13 some images of plugs that were the originala in my 2012 plus4 with a Duratec engine mated with Mazda gear box.

The car was bought new from Phil Ledgerwood and the first service revealed the condition of the parts after about 9700 miles covered in 11 months from new.

The trips were completed in some fairly changeable weather conditions. The Arctic Circle part wasn’t particularly forgiving.
[Linked Image][Linked Image]

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Regards
Bob