What is the best way to maintain the engine of my Ford Focus?

I just purchased a Ford Focus and want to make sure I am properly maintaining the engine to ensure longevity. What are some tips for maintaining the engine of my Ford Focus?

The most important thing is to regularly change your oil and oil filter. This will keep your engine running smoothly and prevent any build up of dirt or debris.

Make sure to also check your coolant levels and top them up if necessary. This will prevent your engine from overheating and causing damage.