04-26-2022, 07:51 PM | #1 |
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N55 M2 Spark Plug Health
Decided to swap plugs out a little early as the car is tracked fairly often.
I'm fairly positive these look normal but may as well get a few opinions. These DFI engines always seem to run lean AFRs causing some "white" on the plugs. ~25k on these plugs, stock tune. No codes/ misfires/ indication that the car is running anything but as designed. Share your pictures and opinions! |
04-26-2022, 08:09 PM | #2 |
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Drives: 2018 M2 AW DCT
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Location: Seattle, WA
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Plugs are recommended to be changed at three years or 30,000 miles which ever came first. Mine were done at three years under BMW maintenance.
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04-26-2022, 08:12 PM | #3 | |
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I'm seeking others experiences as to why these plugs seem to have more white deposits versus some of the cars I'm used to seeing, to be more specific. |
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04-26-2022, 10:37 PM | #4 |
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Drives: 2018 M2 AW DCT
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White usually means the plugs are running too hot.
Here is a reference: https://www.championautoparts.com/Pa...ark-plugs.html |
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04-26-2022, 11:22 PM | #5 | |
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I'm asking for others to post their "used" plugs, preferably with some track time on them, so I may gauge if my plugs may be getting too hot. I suspect this is normal with track use |
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04-27-2022, 10:23 AM | #6 |
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I've done a bit of digging and seemingly answered my own question. I've attached some other pictures that show similar results on plugs. I assume the excellent lighting in the garage I used played a role in how "white" the plugs are
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