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 sedan compete for the same parking spaces. The typical sedan's longer wheelbase will result in a smoother, more stable ride; on the flip side, the Kia Rio may give a sprier feel in daily traffic.
See also:
Competitive Warranty
The 2009 Kia Optima is covered by Kia's comprehensive warranty program, which
offers unprecedented consumer protection. Included in this program are a
10-year/100,000-mile limited powertrain warra ...
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.
...
Engine cooling system
The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the factory.
Check the antifreeze protection and
coolant level at least once ...