How do I improve the fuel efficiency on my Kia Rio?

I have been noticing that my Kia Rio's fuel efficiency has been decreasing lately. What steps can I take to improve my car's fuel efficiency?

Regularly check and replace your air filter, as a dirty air filter can decrease fuel efficiency. You can also try to drive at a consistent speed and avoid unnecessary acceleration and braking.

Make sure your tires are properly inflated. Under-inflated tires can decrease your car's fuel efficiency. You should also try to remove any unnecessary weight from your car, as this can also affect fuel efficiency.

Consider using a fuel additive, such as a fuel injector cleaner, to improve your car's fuel efficiency. You can also try using a higher quality gasoline or switching to a different brand of gas.