How Long Do Spark Plugs Last? Expert Insights and Recommendations

Discover the lifespan of spark plugs, maintenance tips, and their impact on vehicle performance.

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Spark plugs generally do not last 20 years. Spark plugs typically need to be replaced between 20,000 to 100,000 miles depending on the type and driving conditions. For optimal vehicle performance, regularly check your spark plugs and adhere to your vehicle manufacturer's recommended service intervals.

FAQs & Answers

  1. What are the signs that spark plugs need replacing? Signs include poor fuel economy, rough idling, and engine misfires.
  2. Can spark plugs affect engine performance? Yes, worn spark plugs can lead to decreased performance and fuel efficiency.
  3. How often should I check my spark plugs? It's recommended to check them regularly, ideally at each oil change or according to the manufacturer's schedule.
  4. What is the average lifespan of spark plugs? Spark plugs generally last between 20,000 to 100,000 miles, depending on the type and usage.

Watch More

For more insights into automotive maintenance, check out our videos on vehicle servicing tips and how to optimize engine performance.

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