What is the best way to maintain the Vauxhall Insignia's engine?

I recently purchased a Vauxhall Insignia and I want to make sure I am properly maintaining the engine. What are some recommended maintenance tasks and schedules that I should follow?

Regularly check and change your oil, as old or dirty oil can cause damage to the engine. This should be done every 5,000-7,500 miles depending on your driving habits.

Keep an eye on the coolant levels and make sure the coolant is changed every 60,000 miles or every 5 years, whichever comes first. This will prevent your engine from overheating and potentially causing damage.

Follow the recommended air filter replacement schedule, as clogged air filters can restrict air flow to the engine and decrease its performance. This is usually done every 30,000 miles or every 3 years.

Regularly check and replace spark plugs, as worn or fouled plugs can decrease fuel efficiency and cause engine misfires. They should be replaced every 30,000-50,000 miles.