Is It Safe to Spray Brake Cleaner on Spark Plugs?

Discover why using brake cleaner on spark plugs is not recommended and learn about safer cleaning alternatives.

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It's generally not recommended to spray brake cleaner on spark plugs because it can damage the insulator or leave a residue that affects performance. Instead, use a dedicated spark plug cleaner or a gentle solvent. Always ensure the spark plug is fully dry before reinstalling.

FAQs & Answers

  1. What can I use to clean spark plugs safely? Use a dedicated spark plug cleaner or a gentle solvent, avoiding harsh chemicals.
  2. What happens if I use brake cleaner on spark plugs? It can damage the insulator and leave residue, negatively impacting performance.
  3. How do I know if my spark plugs need cleaning? If you notice engine misfires, poor fuel efficiency, or rough idling, your spark plugs may need cleaning.
  4. Can I use compressed air to clean spark plugs? Yes, compressed air can help remove debris without damaging the spark plugs.

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