How can I improve the fuel efficiency of my Volkswagen T-Roc?

I recently bought a Volkswagen T-Roc and I am concerned about the fuel efficiency. I have noticed that I am not getting the advertised mileage. Any tips on how I can improve it?

The best way to improve fuel efficiency is to maintain your car properly. Make sure to get regular tune-ups and oil changes, and check your tire pressure regularly.

Avoid unnecessary idling and try to drive at a consistent speed. Sudden accelerations and braking can also decrease fuel efficiency.

Consider using a fuel additive or switching to a higher quality fuel. These can help improve your car's performance and fuel efficiency.