Kia Optima Hybrid 2017 Owner's Manual page 566

MAINTENANCE ITEM
Climate control air filter
Maintenance operation
I: Inspect and if necessary, adjust, correct, clean or replace.
R: Replace or change.
SEVERE DRIVING CONDITIONS
A: Repeatedly driving short distance of less than 8 km (5 miles) in normal temperature or less than 16 km
(10 miles) in freezing temperature.
B: Extensive engine idling or low speed driving for long distances.
C: Driving on rough, dusty, muddy, unpaved, graveled or salt-spread roads.
D: Driving in areas using salt or other corrosive materials or in very cold weather
E: Driving in heavy dust condition.
F: Driving in heavy traffic area.
G: Driving on uphill, downhill, or mountain roads.
J: Driving in very cold weather.
K: Driving over 170 km/h (106 mph).
L: Frequently driving in stop-and-go conditions.
MAINTENANCE IN‐
DRIVING CONDITION
TERVALS
Replace more frequently depending on
R
DRIVING CONDI‐
the condition
TION
C, E, G
9
9-13