How to improve the fuel efficiency of a Kia Soul?

I have noticed that my Kia Soul's fuel efficiency has decreased over time. What steps can I take to improve it?

Regularly check your tyres' pressure to ensure they are properly inflated. Underinflated tyres can significantly decrease fuel efficiency.

Avoid carrying excess weight in your Kia Soul as it can also impact fuel efficiency. Remove any unnecessary items from your trunk.

Make sure to use the recommended grade of motor oil for your Kia Soul. Using the wrong grade can reduce fuel efficiency.