Tag: when to change spark plugs
How Many Years Do Spark Plugs Last? Real-World Lifespan Explained
Mar 22 2026 / Ignition PartsSpark plugs typically last 5 to 10 years depending on type and driving habits. Copper plugs wear out in 2-3 years, while iridium ones can last 8-10. Age matters as much as mileage - even parked cars need attention.
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