Kia Optima Hybrid 2017 Owner's Manual page 564

Normal Maintenance Schedule - For Gasoline Engine [For Europe (Except Russia)]
Number of months or driving distance, whichever comes first
MAINTENANCE INTERVALS Months
Miles×1,000
Km×1,000
MAINTENANCE ITEM
*3
Fuel additives (Gasoline)
Fuel filter (Gasoline)
Fuel lines, hoses and connections
Fuel tank air filter
HSG (Hybrid Starter & Generator) belt
Parking brake
*5
Spark plugs Nu 2.0L GDI
Steering gear rack, linkage and boots
Suspension ball joints
Tire (pressure & tread wear)
Vacuum hoses and crankcase ventilation hoses
Vapor hose and fuel filler cap
I: Inspect and if necessary, adjust, correct, clean or replace.
R: Replace or change.
12 24
10 20
15 30
Add every 15,000 km (10,000 miles) or 12 months
- I
- -
- I
*4
I I
- I
Replace every 150,000 km (100,000 miles) or 120 months
I I
I I
I I
I I
- -
36 48 60 72
30 40 50 60
45 60 75 90
- R - I
- I - -
- R - I
I I I I
- I - I
I I I I
I I I I
I I I I
I I I I
- I - -
84 96
70 80
105 120
- R
- I
- R
R I
- I
I I
9
I I
I I
I I
- I
9-11