How to improve the fuel efficiency and performance of my Kia Sportage?

I've noticed that my Kia Sportage is not performing as well as it used to and I'm spending more on gas than I'd like. Are there any ways I can improve its fuel efficiency and performance?

Regular maintenance is key. Make sure to get your air filter, spark plugs, and fuel injectors checked and replaced if necessary. This can greatly improve your fuel efficiency and performance.

Check your tire pressure regularly. Underinflated tires can decrease fuel efficiency and negatively impact performance.

Consider using a fuel additive to clean your engine and improve its overall performance. This can also help with better gas mileage.