Kia Optima: Check spark plugs and ignition 
system - Winter driving - Driving your vehicle - Kia Optima TF 2011-2026 Owners ManualKia Optima: Check spark plugs and ignition system

Inspect your spark plugs as described in section 7 and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way.

Change to "winter weight" oil if necessary
In some climates it is recommended that a lower viscosity "winter weight" oil be used during cold weather. See section 8 for recommendations. If you aren't sure what weight oil y ...

To keep locks from freezing
To keep the locks from freezing, squirt an approved de-icer fluid or glycerine into the key opening. If a lock is covered with ice, squirt it with an approved de-icing fluid to remove the ice. ...

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Removal and Installation
1. Disconnect the battery negative terminal. Tightening torque :4.0 ~ 6.0N.m (0.4 ~ 0.6kgf.m, 3.0 ~ 4.4lb-ft) 2. Remove th ...

Specifications
Specifications Item Specification Power source DC 14.4V (-) ground Frequency range / Channel space FM : 87.5 ~ 107.9 MH ...

Replacement
1. Disconnect the negative (-) battery terminal. 2. Recover the refrigerant with a recovery/charging station. 3. Disconnect the A/C pressure transduc ...

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