What Should You Spray into a Spark Plug Hole? Expert Tips!

Learn the proper substances to use in a spark plug hole and what to avoid for optimal engine health.

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Never spray random substances into a spark plug hole. Opt for specialized products like fogging oil for engine preservation or a small amount of engine oil to improve compression if suggested by your mechanic. Improper substances can damage the engine and result in costly repairs.

FAQs & Answers

  1. What happens if I spray the wrong substance into a spark plug hole? Using improper substances can damage your engine, leading to expensive repairs.
  2. What is fogging oil and when should I use it? Fogging oil is a specialized product used for engine preservation, particularly during long-term storage.
  3. Can I use engine oil to improve compression? Yes, a small amount of engine oil can help improve compression, but it should be used only if recommended by your mechanic.