How do I properly maintain my Ford Mondeo's engine?

I recently purchased a Ford Mondeo and I want to make sure I properly maintain the engine for optimal performance. I'm not very familiar with car maintenance, so can someone give me some tips on what I should do and how often?

Regular oil changes are crucial for maintaining the health of your engine. Aim to have one every 5,000 miles or 6 months.

Don't forget to check and replace your air filter every 15,000 miles. This helps keep your engine running efficiently.

In addition to regular maintenance, make sure to listen for strange noises and get any potential issues checked out by a mechanic.