Understanding Spark Plug Soot (and What It Means for Your Engine)

Close-up of a spark plug covered in black soot, showing carbon deposits on the electrode and insulator.
Spark plugs are the unsung heroes of combustion engines. Without them, your vehicle simply wouldn’t start. But when those small ...
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Recognizing the Signs of Bad Spark Plugs (and What to Do About Them)

Used spark plugs with carbon buildup next to a clean new spark plug, illustrating signs of wear and tear that can affect engine performance.
Your car’s spark plugs may be small, but they play a massive role in engine performance and overall vehicle health. ...
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