How often should the spark plugs be replaced in a Kia Stonic?

I recently purchased a Kia Stonic and I'm wondering about the recommended maintenance schedule for spark plug replacements. Can you provide any insight on how often this should be done and if there are any signs to look out for that indicate they need to be replaced?

It is recommended to replace spark plugs every 30,000 miles or every 3 years, whichever comes first.

If you notice any of the following symptoms, it may be time to replace your spark plugs: difficult starting, rough idling, engine misfires, decreased fuel efficiency, or engine hesitation.

It's always a good idea to consult your owner's manual for specific maintenance schedules, but as a general rule of thumb, checking and potentially replacing spark plugs should be part of your regular tune-up routine.