NHTSA Complaint #11636731 — 2018 KIA OPTIMA

POWER TRAIN issue reported to NHTSA

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Complaint Details

ODI Number	11636731
Vehicle	2018 KIA OPTIMA
Component	POWER TRAIN
Date of Incident	January 18, 2025
Date Filed	January 18, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MS

Consumer Description

It burns oil constantly. I constantly have to get new filters put on because they become black very quickly same with the oil itself. The engine has a tic and I know other people with optima’s that have the same problem. I burn through 4 quarts in two weeks- less than 600 miles.

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#11637108 — January 20, 2025 — My engine burns oil very bad. Black smoke comes out of my tailpipe and I burn through 5 quarts in less than a thousan...

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Recent Complaints for the 2018 KIA OPTIMA

#11710029 — ENGINE — January 9, 2026 — It started with the oil. I constantly have to add oil. when it first started that’s what I was doing just adding oil....

#11710029 — UNKNOWN OR OTHER — January 9, 2026 — It started with the oil. I constantly have to add oil. when it first started that’s what I was doing just adding oil....

#11709575 — ELECTRICAL SYSTEM — January 8, 2026 — I turned the car off, it had difficulty turning back on and the brake pedal got really hard. I had to wait about 30-4...

#11709575 — ENGINE — January 8, 2026 — I turned the car off, it had difficulty turning back on and the brake pedal got really hard. I had to wait about 30-4...

#11709575 — SERVICE BRAKES — January 8, 2026 — I turned the car off, it had difficulty turning back on and the brake pedal got really hard. I had to wait about 30-4...