Kia Optima 2017 Owner's Manual page 611

Maintenance Under Severe Usage Conditions - For Gasoline Engine [Except Europe (Including Russia)]
Maintenance item
Engine oil and engine
oil filter
Air cleaner filter
Spark plugs
Manual transaxle fluid (if equipped)
Automatic transaxle fluid (if equipped)
Steering gear rack, linkage and boots
Suspension ball joints
Brake discs and pads, calipers and rotors
Maintenance
operation
Theta 2.4L
Nu 2.0L
Theta 2.0L T-GDI
Maintenance intervals
Every 7,500 km (5,000
R
miles) or 6 months
Every 5,000 km (3,000
R
miles) or 3 months
Replace more frequently
R depending on the condi‐
tion
Replace more frequently
R depending on the condi‐
tion
Every 120,000 km
R
(80,000 miles)
Every 90,000 km
R
(60,000 miles)
Inspect more frequently
I depending on the condi‐
tion
Inspect more frequently
I depending on the condi‐
tion
Inspect more frequently
I depending on the condi‐
tion
Driving condition
A, B, C, D, E, F, G,
H, I, J, K, L
A, B, C, D, E, F, G,
H, I, J, K, L
C, E
B, H, I, L
C, D, E, F, G, H, I, K
8
A, C, D, E, F, G, H, I,
K
C, D, E, F, G
C, D, E, F, G
C, D, E, G, H
8-25