2018 KIA RIO Engine Problems

12 complaints about Engine

12
Complaints
1
Crashes
1
Fires
0
Deaths

High Severity Issue

This component has been associated with crashes, fires, or deaths.

This Problem Across All Years

All Engine Complaints (12)

Nov 22, 2025

My 2018 Kia Rio is burning 2 quarts of oil every 800 miles, confirmed by a Kia dealership through an official oil consumption test. The issue first started around 110,000 miles and has progressively gotten worse. I have owned the vehicle since it had 40,000 miles, and I have always had the oil changed on time and maintained the car properly. Despite proper maintenance, the engine gives off a strong burning-oil odor, and smoke enters the cabin while driving. This happens consistently, not occasionally. Because the engine loses oil so quickly, it can run dangerously low without warning, creating a risk of sudden engine failure while driving. I regularly transport my [XXX] child, and the fumes entering the cabin are unsafe to breathe. Kia Customer Care denied goodwill assistance due to the number of previous owners and the mileage, even though the dealership confirmed abnormal oil consumption and noted this is a known issue with these engines. Kia has refused to assist repairing or replacing the engine, leaving me driving a vehicle that is unsafe and at risk of failure. The excessive oil consumption, smoke entering the cabin, and the potential for engine failure create a serious safety hazard for occupants and other drivers. I am requesting NHTSA to investigate this issue, as it appears to be a recurring safety-related problem with these engines. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Oct 12, 2025

2018 Kia Rio – severe oil consumption leading to low compression (30 PSI on Cylinder 2) and engine failure. Dealership installed incorrect non-OEM spark plugs prior to failure. Kia denies warranty coverage although this matches known engine defects in other Kia models

Oct 6, 2025

My 2018 Kia Rio S (VIN [XXX] ) suffered sudden engine failure at approximately 84 000 miles. I pulled over immediately when the oil light came on, but the engine began rattling and was later diagnosed by the dealer as a bearing/seizure failure requiring full engine replacement (estimate ≈ $15 865). This vehicle uses the 1.6 L Gamma II GDI engine, which is the same engine family already included in Kia’s “Engine Litigation II” settlement and KSDS (Knock Sensor Detection System) program for Forte, Soul, and other models. However, Kia claims the 2018 Rio is not covered by the extended warranty even though the failure mode is identical (rod-bearing wear and oil starvation). I never received any recall or settlement notice. The lack of notification and exclusion of the Rio model leave owners unprotected against a known safety-related defect that can cause stalling or fire. I request NHTSA investigate inclusion of 2018 Kia Rio vehicles in the existing Gamma engine recall/settlement. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Mar 5, 2025

The contact owns a 2018 Kia Rio. The contact stated that while driving at an undisclosed speed, the vehicle stalled with the check engine warning light illuminated. The vehicle was restarted. The vehicle was taken to an independent mechanic, where it was diagnosed with a cylinder #1 misfire. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The dealer was contacted but the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 102,316.

Mileage: 102,316

Nov 10, 2024

MY CAR IS CONSUMING OIL

Jun 9, 2024 Fire

My 2018 Kia Rio actually lit up on fire as I was driving down the highway on way to work. As I drove down the highway, I noticed that I had trouble using the brakes. It seemed as if they were working one second and then not working the next. At that time, I noticed fire coming from underneath the car and I was able to get the vehicle to the side of the road. As I was exiting the vehicle, the flames were coming up on either side of the driver and passenger doors. Within the next couple minutes the car exploded. Fire rescue put out the fire and the interstate was closed to all traffic. Since the incident, my family and I have done research and found several incidents with very similar stories with regard to what happened to the vehicle. I believe it is well documented that there is a problem with certain Kia models that involves some kind of deficiency in the brake line that can cause the puncture/severing of fuel line. The end result can include "loss of braking ability" and "potential fire hazard". Reading these other incident reports from other families was exactly the way the vehicle reacted in my own incident. I could've lost my life in this incident and I wholeheartedly believe that liability lays with the manufacturer. My vehicle was very well maintained. Regular maintenance included inspections, tires, oil changes and more. There is NO reason why this should've occurred. I have tried to contact the Kia dealership where I purchased the car, the service manager, and other Kia dealerships in the area (Mufreesboro, TN) and have been told there is absolutely nothing I can do and I find that unacceptable. Understand that there are witnesses, photos, new coverage photos etc. I sincerely hope to get a response on how to pursue damages and to ensure this doesn't happen to anyone else.

May 18, 2024

I've been having issues with the engine for a while I'm constantly getting oil changes and after getting the oil change I would still have to add oil in every 2-3 weeks. 2/14/2024 My Oil light came on back on after putting oil in 2 weeks prior. That day my Car stalled on the HWY all my dash lights( battery, engine and oil light flashed. Ive been to multiple mechanics shop such as Express oil and Midas and both have told me there is a recall on engine such as mines, I called Kia multiple times and they told me it wasn't. I took the car to Kia last year and told them i was having issues with my engine and they told me I all I needed was a tuneup. Got the tune up and oil changed. I still ended up having to continue to add oil in my car. I brought this car brand new back in 2018 and only put 117k miles on the car. I've gotta regular oil changes and kept up with the car. My oil wasn't due for another oil change when the incident occurred.

Feb 23, 2024

My dad bought a Kia Rio 2018 for 8k cash a day ago well two blocks from the dealer white smoke comes out of exhaust then oil pressure light came on, pulled over checked oil which was overfull with milky residue, dealer said to drive it home so we tried them got half block then black smoke came out and it started rattling then died so we left it. Mechanic said it threw a rod and hole in the engine. I know the 2017 Kia Rio is included in the class action lawsuit and I want the 2018 to be looked at into adding because if we were going faster when it happened something bad could have happened. I have videos and pictures evidence but it won't allow me to upload because the files are to big.

Dec 8, 2023

For the past year and few months I’ve been having to do an oil change every two weeks because of how fast the engine is burning the oil. Several times I arrive to the shop to find the oil pan is completely empty causing issues with my engine beginning to make strange noises that are concerning. The dash light does not come on to notify me that there is no oil. I’m sure the damage is severe because I have had the check engine light come on a couple times and having to fix it because of this. Other Kia drivers have had this issue with other models, including this one.

Jun 8, 2023

Excessive engine oil consumption which has caused car to enter limp mode

Dec 15, 2022

Excessive oil consumption 1 quart every 1000 miles. The brake light socket overheats causing fast bulb burn outs.

Oct 14, 2021 Crash

On 10/02/2021 - Was at a stop, put car in drive press the peddle car accelerated at high speed, miss another car and hit tree. Accident cause by acceleration issue with KIA Rio. Need advice on how to get KIA to replace total vehicle. Auto Insurance is just calling it a accident.