10.0

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
0 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2018 Kia Optima engine problems

engine problem

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2018 Kia Optima Owner Comments

problem #2

Sep 012023

Optima

  • miles

A D V E R T I S E M E N T S

My engine is under a million mile warranty because it burns 1qt oil/1,000 miles. My engine burns just under 2 quarts of oil about 800 miles. For long trips, this is very unsafe because my engine is going seize or burnout on the highway at some point. This will put my life and possibly that of other drivers at significant risk.

- Watertown, CT, USA

problem #1

Aug 072023

Optima

  • miles
Car is burning to much oil and have to change oil every three thousand miles

- Nashville , TN, USA

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