How often should I replace my Ford Fiesta's spark plugs?

I've heard that spark plug replacement can improve a car's performance and fuel efficiency, but I'm not sure how often I should do it for my Ford Fiesta. Can someone give me some advice on how frequently I should replace the spark plugs on my car?

It is recommended to replace spark plugs every 30,000 miles or every 2-3 years. However, it's always a good idea to consult your Ford Fiesta's owner's manual for specific recommendations based on your car's model and year.

You may also want to consider replacing your spark plugs if you notice decreased performance or an increase in fuel consumption. By keeping your spark plugs in good condition, you can improve your car's overall performance and save money on gas.