See also:

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. ...

Dimensions
The typical sedan is tremendously heavier than the Kia Rio. Your wallet will hurt more every time you fill up the typical sedan than the Kia Rio because of its larger tank. The Rio and the typical ...

Comfort
While the front cabin in the Rio offers a bit more head room than the typical sedan, there honestly isn't much of a difference. While the rear of the typical sedan provides a bit more head- and le ...