The 2006 Kia Optima runs on regular unleaded.
The 2011 Kia Optima has a 6-speed manual.
The 2010 Kia Optima has a 5-speed manual.
The 2012 Kia Optima has a 6-speed manual.
The 2008 Kia Optima has a 5-speed manual.
The 2009 Kia Optima has a 5-speed manual.
The 2004 Kia Optima has a 5-speed manual.
The 2005 Kia Optima has a 5-speed manual.
The 2003 Kia Optima has a 5-speed manual.
The 2002 Kia Optima has a 5-speed manual.
The 2001 Kia Optima has a 5-speed manual.
The 2007 Kia Optima has a 5-speed manual.