How to best maintain the engine of a Ford Fiesta?

I recently purchased a Ford Fiesta and want to make sure I am taking care of the engine properly. What steps should I take to maintain the engine and ensure its longevity?

Regularly check and change the oil according to the manufacturer's guidelines.

Keep an eye on the coolant levels and make sure to flush and replace it every 30,000 miles.

Don't skip out on routine tune-ups and maintenance checks.

Avoid driving aggressively and keep a consistent speed on the highway to prevent wear and tear on the engine.