3-Series (E36)Chat relating to the BMW 3-Series from 1992-1999. Autodoodad
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Attached image shows the spark plug in my '97 328i. All 6 of the spark plugs look the same. What I am concerned about is the red color in the middle. Does the spark plug look normal. Is it just normal wear ?
I think it looks normal. I should have some brownish coloring to it, your's isn't excessive. The electrode has a good shape to it, it's not covered in deposits or cracked.
I think your in good shape, I hope my plugs look like yours when I pull them out soon.
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