See also:

2010 Kia Forte
The all-new Forte is replacing Kia's best-seller, the Spectra, in the company's lineup for 2010. Can this smartly designed sedan grab more market share from the likes of the Honda Civic, Toyota Co ...

Rear differential (4WD)
Checking or changing rear differential fluid Have rear differential fluid checked or changed by an Authorized Kia Dealer according to the Maintenance Schedule at the beginning of this section. ...

Price Ranges
The base Optima LX is priced at $16,355 with a 4-cylinder engine and 5-speed manual transmission and an extra $1,295 with a 5-speed automatic. An LX V6 costs $19,345 and comes only with the automa ...