Vehicle Questions and Answers
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The 2015 Kia Optima runs on regular unleaded gasoline, which must burn efficiently to maximize your fuel economy. It's important to keep your gas tank in optimal condition to avoid issues. Problems may arise such as a stuck gas cap or gas leaks, which require immediate attention. The gas tank should be secure, and a faulty control valve or other car parts may malfunction over time. It is recommended to change the fuel filter every 30,000 miles to maintain performance and avoid potential issues.
Can the 2017 Kia Optima use mid-grade unleaded gasoline?
The 2015 Kia Optima is designed to run on standard unleaded fuel.