How often should I change the spark plugs on my Ford Fiesta?

I recently purchased a Ford Fiesta and was wondering how often I should change the spark plugs. I've heard conflicting opinions and wanted to know the best advice for keeping my car in top shape. Thanks!

It is recommended to change the spark plugs on your Ford Fiesta every 30,000 miles or every 3 years, whichever comes first. This will ensure optimal performance and prevent engine misfire.

If your Ford Fiesta experiences rough idling or difficulty starting, that could be a sign that your spark plugs need to be replaced. In general, it's better to err on the side of caution and change them every 30,000 miles.

I have a Ford Fiesta and I've found that changing the spark plugs every 3 years is sufficient, even if I haven't reached 30,000 miles. It's better to be proactive and prevent issues, rather than waiting for them to arise.