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Unread 04-16-2017, 04:36 PM   #1
norseman's Avatar
Join Date: Sep 2010
Location: NC
Posts: 257
Default Spark Plug Scoring

I was changing out all of spark plugs today and found one that had some orange scoring/staining on ceramic below the threads. Does anyone have an idea why this occurred on just this one spark plug?

'08 ltd v6 4x4|mica gray|1.25" spidertrax|285/65r18 toyo at II | fuel trophy wheels|1.5" 4crawler bl|body mount chop|icon billet uca|2.5 radflo front coilovers + rear shocks|all pro 3.5 rear coils|mt rear links|ss brake lines|dual odyssey w/ ibs|led in/exterior lights|hella supertones|demello front bumper|viair oba|weathertech liners. Das bauen
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