A spark plugs typically lasts 30,000–50,000 miles. However, usage, maintenance and environmental factors can shorten or extend its lifespan.
Average lifespan of a spark plugs
Standard spark plugs last about 30,000–50,000 miles, while iridium plugs can reach up to 100,000 miles.
What affects how long a spark plugs lasts
The lifespan of a spark plugs depends on factors such as engine design, plug material, driving conditions and maintenance and tune‑ups. These elements influence wear and can either extend or reduce its typical life.
Signs a spark plugs needs replacing
Common signs that a spark plugs is nearing the end of its life include engine misfires, reduced fuel efficiency, difficulty starting or rough idle. Noticing these cues helps you plan for replacement.
How to make a spark plugs last longer
To extend the life of your spark plugs, follow the manufacturer’s maintenance recommendations. Regular cleaning, proper usage and timely minor repairs can help it serve longer.
When replacement is necessary
If your spark plugs shows persistent failures, safety issues or is beyond its typical lifespan, replacing it with a new model is usually more cost‑effective than repeated repairs.