What are some tips for maintaining my Nissan Navara's engine?

I have recently purchased a used Nissan Navara and want to know how to properly maintain the engine to ensure its longevity and performance. Any advice or tips would be greatly appreciated.

Regularly change your oil and filter according to the manufacturer's recommended schedule.

Keep an eye on your coolant levels and make sure to top up or replace if necessary.

Check your air filter regularly and replace it if it appears dirty or clogged.