Why is it important to regularly check and replace the spark plugs on a Ford S-Max?

I have heard that the spark plugs are a crucial component of a car's engine, but I am not sure how often I should be checking and replacing them. Can someone explain why it is important and how frequently it should be done?

Regularly checking and replacing your spark plugs is a crucial maintenance task for your Ford S-Max. Spark plugs play a vital role in the ignition process, and worn or dirty spark plugs can decrease engine performance and fuel efficiency.

You should typically check and replace your spark plugs every 30,000 miles or according to your car's manufacturer recommendation. This will ensure your engine is running smoothly and efficiently.

If your spark plugs are not replaced regularly, it could lead to bigger issues and potentially costly repairs in the future. It's important to stay on top of maintenance to avoid any major problems.