Why does my Kia Niro's fuel economy decrease after adding a roof rack?

I recently added a roof rack to my Kia Niro and noticed a significant decrease in my fuel economy. How does this accessory impact my car's fuel efficiency and what steps can I take to minimize the effects?

Roof racks increase the aerodynamic drag of your car, which can result in decreased fuel economy. This is because the roof rack creates extra resistance against the air while driving. Additionally, the added weight of the rack can also contribute to reduced fuel efficiency.

To minimize the impact of a roof rack on your Kia Niro's fuel economy, try to only use it when needed and remove it when not in use. Additionally, make sure to properly secure any items on the rack to reduce wind resistance and excess weight.

You can also choose a roof rack that is specifically designed for your car make and model, as this can help reduce the negative impact on fuel economy. Regularly checking your tire pressure and keeping up with car maintenance can also help improve overall fuel efficiency.