What's the best way to improve the fuel efficiency of my Kia ProCeed?

I've noticed that my Kia ProCeed's fuel efficiency isn't as good as I expected. Are there any tips or tricks that I can try to increase the fuel efficiency?

First, make sure you're keeping up with regular maintenance such as oil changes and tire pressure. This can greatly impact fuel efficiency. Additionally, try to avoid accelerating and braking too aggressively. Smooth driving can help improve fuel efficiency.

Consider using a fuel additive or fuel cleaner every once in a while to keep your engine running efficiently. These can also help remove any build-up that may be decreasing your fuel efficiency.

Another option is to switch to a higher grade of gasoline. Although it may be more expensive, it can often result in better fuel efficiency.