How can I improve my fuel efficiency in the Vauxhall Zafira Life?

I recently purchased a Vauxhall Zafira Life and I'm concerned about my fuel efficiency. What steps can I take to improve it?

Regularly check and replace your air filter to ensure proper air flow and fuel mixture.

Avoid aggressive driving and maintain a steady speed on the highway to reduce fuel consumption.

Consider investing in a fuel injector cleaner to improve fuel flow and combustion.