What is the most important maintenance for a Ford Mondeo engine?

I've just purchased a 2015 Ford Mondeo with 50,000 miles on it, what should I focus on for keeping the engine in top shape?

Regular oil changes are essential for keeping your engine running smoothly and preventing expensive repairs in the future. Make sure to follow the manufacturer's recommended schedule based on your driving habits.

In addition to oil changes, it's also important to check and replace your air filter regularly. A dirty air filter can restrict airflow to the engine, causing it to work harder and reducing fuel efficiency.