Can bad spark plugs affect fuel efficiency in a Honda City?

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Can bad spark plugs affect fuel efficiency in a Honda City?

Faulty o r worn-out spark plugs can cause incomplete combustion, leading to higher fuel consumption. How frequently should Honda City owners replace spark plugs, and what are the signs of bad spark plugs affecting mileage?

Zarnish asked on 26 Feb 2025 15:40:33 pm

1 Answer

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Car Mechanic Expert - on 26 Feb 2025 15:55:05 pm

Yes, faulty o r worn-out spark plugs can negatively impact the fuel efficiency of a Honda City. When spark plugs fail o r become worn, they can cause incomplete combustion, leading to wasted fuel and reduced engine performance. As a result, the car may consume more fuel than necessary. Spark plugs should be replaced every 30,000 to 50,000 km, depending on the model and the type of spark plugs. Signs that spark plugs need replacing include rough idling, engine misfires, difficulty starting the car, o r a noticeable in fuel efficiency. Replacing faulty spark plugs helps ensure efficient combustion and improves fuel economy.