How do I optimize fuel efficiency in my Vauxhall Grandland?

I have noticed that my Vauxhall Grandland's fuel consumption has been higher than advertised. Are there any specific techniques or maintenance steps I can take to improve my fuel efficiency?

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

Reduce your speed and avoid aggressive driving to decrease fuel consumption.

Consider installing a fuel-efficiency chip or device to optimize engine performance.