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Should I be concerned about the coloration of these spark plugs? (lemmy.zip)
submitted 6 months ago by to c/mechanicadvice@lemmy.world
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Bought this car second hand, they apparently put iridium spark plugs in, but i want to know if I should be concerned with the buildup and rusty appearance it's developed. For all I know this spark plug could be from 10 years ago.

Do I need to replace the plugs, and is that actually rust? Does this mean I have an issue with my head gasket?

Edit: Thanks guys! I'll be ordering some new plugs soon.

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[–] 16 points 6 months ago* (3 children)

Keep in mind 10 years (or longer) is a common timeframe for plugs these days.

My 2006 vehicle - yes, 20 years old - has a 100k replacement cycle. I've put plugs in twice.

Also that color looks spot on, and the electrode looks pretty worn, so it's probably due.

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  • [–] [S] 6 points 6 months ago (1 child)

    Awesome! Thanks for the insight, I hope to keep my car running for 20+ years. :)

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  • [–] 1 point 6 months ago

    Today's cars it's largely possible, except for the ones with crappy chassis and body manufacturing (rust, nominally strong-enough components, etc) - American and European cars, especially the cheap models.

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