Kia Optima excessive oil consumption and engine burning oil issue on Kia Optima

Some Kia Optima owners report experiencing excessive oil consumption and engine burning issues, particularly in models from 2014 to 2019, with some needing to add oil every few hundred miles. This problem persists even after attempts to resolve it, such as replacing faulty components like the exhaust control valve or the PCV valve. Many owners have taken their vehicles to dealerships for oil consumption tests to diagnose the issue, which may incur costs if not covered by Kia's warranty. Additionally, some owners have noted that Kia has acknowledged the problem, resulting in class action lawsuits and even free engine replacements for affected vehicles. However, skepticism remains among some owners regarding the lifetime warranty claims following these legal actions.