How do I increase fuel efficiency in my Vauxhall Insignia?

I've noticed that my Vauxhall Insignia is using a lot of fuel, what can I do to improve its fuel efficiency and save money on fuel?

Regular maintenance is key to improving fuel efficiency in any vehicle. Make sure to get your Vauxhall Insignia serviced regularly and check for any necessary repairs.

Consider changing your driving habits. Avoid aggressive acceleration and braking, and try to maintain a constant speed on the highway. This can greatly improve fuel efficiency.

Make sure your tires are inflated to the recommended pressure. Under-inflated tires can cause your vehicle to use more fuel.