How to improve mileage on a Vauxhall Insignia?

I have a Vauxhall Insignia and I feel like I am not getting the best mileage out of it. What are some tips or adjustments I can make to improve its fuel efficiency?

One way to improve mileage on a Vauxhall Insignia is to make sure your tires are properly inflated. Under-inflated tires can increase fuel consumption.

Another tip is to avoid harsh acceleration and braking. This can put unnecessary strain on your engine and decrease fuel efficiency.

Regular maintenance, such as oil changes and tune-ups, can also help improve your mileage.