How can I increase fuel efficiency in my Vauxhall Grandland?

I recently purchased a Vauxhall Grandland and I have noticed that I am not getting the advertised fuel efficiency. What steps can I take to improve it?

First and foremost, make sure your tires are properly inflated. Under-inflated tires can increase fuel consumption. You can also try using a fuel cleaner additive to improve combustion efficiency.

Avoid unnecessary idling and accelerate gradually. Sudden acceleration and braking can waste fuel. If possible, use cruise control on the highway to maintain a consistent speed.

Check your air filter and replace if necessary. A clogged air filter can decrease fuel efficiency. Additionally, try to keep your vehicle aerodynamic by removing roof racks or accessories when not in use.