How to properly maintain a Nissan Navara engine?

I just bought a Nissan Navara and I want to make sure I properly maintain the engine to ensure longevity and avoid any major breakdowns. What are some recommended maintenance tips and schedules? How can I tell if my engine is in good condition? Any red flags to look out for?

It is important to regularly check and change the engine oil and oil filter according to the manufacturer's recommended schedule. This keeps the engine lubricated and ensures proper functioning.