Kia Optima: Emission Control System

Gasoline Containing Alcohol and Methanol

Gasohol, a mixture of gasoline and ethanol (also known as grain alcohol), and gasoline or gasohol containing methanol (also known as wood alcohol) are being marketed along with or instead of leade ...

Vehicle Modifications

This vehicle should not be modified. Modification of your Kia could affect its performance, safety or durability and may even violate governmental safety and emissions regulations. In addition, d ...

See also:

Fuel Requirements
Your new Kia vehicle must use only unleaded fuel having an octane rating of at least 87. Your new Kia is designed to obtain maximum performance with UNLEADED FUEL, as well as minimize exhaust emi ...

Auto light control
To operate the auto light, turn the knob on the end of the control lever. If you set the knob to “AUTO� the tail lights and headlights will be turned on or off automatically according to the ...

Removal
1. Remove the radiator grill upper cover.(Refer to the BD group - "Front bumper") 2. Remove the mounting nut and disconnect the horn connector (B), then ...