Why does my Vauxhall Grandland have a low gas mileage?

I recently bought a Vauxhall Grandland and I've noticed that the gas mileage is lower than what was advertised. Is there something wrong with my car?

It could be caused by a number of factors such as improper tire pressure, driving habits or fuel quality. Make sure to check your tire pressure regularly and try to avoid aggressive driving.

Have you tried getting your car serviced? A regular service can improve the gas mileage of your car.

You could also try using a fuel additive to improve your car's gas efficiency.