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what does this stuff mean on a spark plug?
There is a yellow-ish ring on top of the hex at the insulator. Does this mean the plug is bad? It has about 5k miles
https://cimg5.ibsrv.net/gimg/www.hum...19ae8ec9b4.jpg on it. |
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Interesting - thanks. The plug has coil-on-plug, so should not have much oil around it.
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Originally Posted by Justinh
(Post 413163)
Interesting - thanks. The plug has coil-on-plug, so should not have much oil around it.
https://www.youtube.com/watch?v=UVI-rcZMGYw https://cimg9.ibsrv.net/gimg/www.hum...33f353c6bd.jpg |
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