22 city 32 highway on the 4 cylinder.
20 city 28 highway on the V6.
The 2009 Kia Optima is a gas-powered vehicle.
The gas tank on the 2009 Kia Optima holds 16.4 gal..
The 2006 Kia Optima is a gas-powered vehicle.
The 2012 Kia Optima is a gas-powered vehicle.
The 2005 Kia Optima is a gas-powered vehicle.
The 2011 Kia Optima is a gas-powered vehicle.
The 2014 Kia Optima is a gas-powered vehicle.
The 2008 Kia Optima is a gas-powered vehicle.
The 2002 Kia Optima is a gas-powered vehicle.
The 2001 Kia Optima is a gas-powered vehicle.
The 2013 Kia Optima is a gas-powered vehicle.
The 2004 Kia Optima is a gas-powered vehicle.