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.
Use only the specified rear differential fluid. (Refer to "Recommended lubricants and capacities" in section 8.)
See also:
Vehicle identification number (VIN)
The vehicle identification number (VIN) is
the number used in registering your vehicle
and in all legal matters pertaining to
its ownership, etc.
The number is punched on the floor
under the fr ...
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 ...
Fuel requirements
Your new vehicle is designed to use only
unleaded fuel having a pump octane
number ((R+M)/2) of 87 (Research
Octane Number 91) or higher.
Your new vehicle is designed to obtain
maximum performanc ...