Optima LX, EX, EX V6 - The introductory trim -- the 2009 Kia Optima LX -- comes with a 2.4L I4 engine that produces 175 hp. This engine comes standard paired to a five-speed manual transmission with overdrive. There is a five-speed electronically controlled Sportmatic transmission with overdrive available as an option. The next trim level is the EX model. This one has the same engine and standard engine as the LX trim. It has the same five-speed transmission available as an option. The fuel economy rating for both of these trims, according to Kia, is 22 miles per gallon in the city and 32 miles per gallon when driving on the highway. This becomes a combined fuel economy rating of 25 miles per gallon. The 2009 Kia Optima EX V6 offers a 2.7L V6 engine but comes paired to the five-speed automatic transmission as standard. The fuel economy of this model changes due to the larger engine and different transmission. According to the current EPA data, the fuel economy rating for this trim comes in at 20 miles per gallon in the city and 28 miles per gallon when driving on the highway. This becomes a combined fuel economy rating of 23 miles per gallon.
Optima SX, SX V6 - The 2009 Kia Optima SX offers the smaller 2.4 I4 engine and some standard with a five-speed manual transmission. This trim also has the optional five-speed automatic transmission available. The means the EPA fuel economy of this vehicle is the same as for the LX and the EX trims at 22 miles per gallon in the city and 32 miles per gallon when driving on the highway for a combined rating of 25 miles per gallon. The last trim level is the top-of-the-line 2009 Kia Optima SX V6. This model offers the larger 2.7L V6 engine again. It comes standard paired to the five-speed automatic transmission. With the same engine/transmission configuration this vehicle has the same fuel economy rating of the EX V6 trim at 20 miles per gallon in the city and 28 miles per gallon when driving on the highway for a combined rating of 23 miles per gallon.