See also:

Stop and Go available for two engines
By the end of 2010, Kia will be offering its fuel-stretching ISG (Intelligent Stop and Go) system as an option on both the 1.7 diesel and 1.6 GDI engine. ISG automatically switches the engine off ...

Engine cooling system
The high-pressure cooling system has a reservoir filled with year-round antifreeze coolant. The reservoir is filled at the factory. Check the antifreeze protection and coolant level at least once ...

Competitive Warranty
The 2009 Kia Optima is covered by Kia's comprehensive warranty program, which offers unprecedented consumer protection. Included in this program are a 10-year/100,000-mile limited powertrain warra ...