Does a 2004 Kia Optima need a tune up?

A 2004 Kia Optima may need a tune-up if it shows signs of poor performance, such as rough idling, decreased fuel efficiency, or difficulty starting. Typically, a tune-up involves replacing spark plugs, air filters, and checking various engine components. It's advisable to consult the owner's manual for the recommended maintenance schedule and check for any specific symptoms that might indicate a tune-up is necessary. Regular maintenance can help ensure the vehicle runs smoothly and efficiently.