Why do spark plugs in Changan Karvaan wear out faster than expected in Pakistan?

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Why do spark plugs in Changan Karvaan wear out faster than expected in Pakistan?

Many users in Pakistan report frequent misfiring o r engine roughness in their Karvaan, only to find that spark plugs are worn out too early. Is this due to low-quality fuel, dust, o r an issue with the ignition system?

Qalb E Momin asked on 06 Aug 2025 13:00:50 pm

1 Answer

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Car Mechanic Expert - on 06 Aug 2025 13:04:14 pm

Spark plugs in the Karvaan wear out quickly due to a mix of factors:

Low-quality petrol with high carbon content

Dusty air intake, leading to incomplete combustion

Irregular engine tuning

Stop-and-go traffic, causing plugs to run rich excess fuel

These conditions lead to carbon fouling, misfiring, and rough idling even before 20,000–25,000 km in many Pakistani cities.