Engine compartment

1. Engine Coolant Reservoir ................7-15
1. Engine Coolant Reservoir ................7-15 2. Engine Oil Filler Cap ........................7-14 3. Brake Fluid Reservoir.......................7-18 4. Air Cleaner .......................................7-23 5. Fuse Box ..........................................7-43 6. Negative Battery Terminal..........6-4/7-27 7. Positive Battery Terminal............6-4/7-27 8. Radiator Cap..............................6-6/7-17 9. Engine Oil Dipstick ...........................7-14 10. Windshield Washer Fluid Reservoir..7-22 11. Power Steering Fluid Reservoir* ....7-19 * : if equipped
The actual engine room in the vehicle may differ from the illustration.

    See also:

    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 ...

    Transfer case (4WD)
    Checking or changing transfer case fluid Have transfer case fluid checked or changed by an Authorized Kia Dealer according to the Maintenance Schedule at the beginning of this section. Use only ...

    Interior Refinement
    The style makeover continues into the Optima's cabin with expanded electronics melded with refreshed fascia patterns and color schemes. Based on a new platform, the standard audio system features ...