2020 Kia Sorento: excessive oil consumption

Filed Oct 22, 2026 · Engine · TX

I bought a used 2020 Kia Sorento LX 2.4L in 2022. It had 15,000 miles on it. AT 50,000 miles I noticed it was consuming oil. I have been changing the oil at 5,000 mile intervals even though the manual calls out to do it every 7,500 miles. I have records of the maintenance for every oil change done on this vehicle. I kept a log and now at 54,740 miles it is consuming 1 quart every 500 miles or so. I took it to the dealer on 10/19/2026 and was told that since I was not the original owner there was no warranty coverage on it. So that nullified the 10 year/100,000 mile warranty. I was told they could do a chamber cleaning for $800.00 and if that failed I would need to replace the engine at an out of pocket cost to me of $9,000.00 to $10,000.00 I have to monitor the oil level constantly to avoid the engine seizing and breaking down in traffic . This auto is used by my spouse to drive my grand kids to and from school. There are no warnings or messages on the oil level so it is driven with uncertainty .

Filed May 19, 2026 · Engine · MI

Engine is burning oil at a significant rate, when I get my oil changed at the dealers recommendation it is extremely low. I have to replace the oil regularly between oil changes, and there is an exhaust smell. Also lagging when I hit the gas.

Filed Apr 26, 2026 · Engine · MD

2020 Kia Sorento consuming 1.5 or more quarts of oil every 1,000 miles. Completing oil consumption testing with Kia dealer, which requires I take the car back to the dealer every 1k miles, times, so they can verify the oil levels. Last check, when issue was discovered, vehicle was down to only 1qt of oil after driving only 2k miles from previous oil change. Note: the lambda engine was initially included in the latest Kia class action settlement but was dismissed per the plaintiff’s attorney in that case. However there are numerous reports from a large number of 2020 Kia Sorento owners now with the same issue and running into complete roadblocks in terms of recourse as for most the issue does not begin until they exceed the powertrain warranty. Especially if they’re secondary owners and not the original owner.

Filed Mar 17, 2026 · Engine · CA

Office of Defects Investigation the federal safety agency 1200 New Jersey Avenue SE Washington, DC 20590 Subject: Safety Complaint – Premature Engine Failure Risk Due to Excessive Oil Consumption and Confirmed Cylinder Scoring – 2020 Kia Sorento Dear Sir or Madam, I am submitting a formal safety complaint regarding a 2020 Kia Sorento that is experiencing severe and abnormal engine oil consumption along with confirmed cylinder wall scoring. These conditions indicate progressive internal engine damage and present a significant risk of premature engine failure. The vehicle has been regularly maintained in accordance with manufacturer service recommendations. Despite proper maintenance, the engine began consuming excessive amounts of oil between normal service intervals. During inspection by the servicing dealership, visible cylinder wall scoring was identified within the engine. Cylinder scoring is a clear indication of internal engine wear and deterioration and can lead to rapid progression toward engine failure. Despite the confirmed presence of internal engine damage, the manufacturer has refused to authorize an engine replacement under the extended warranty program unless the engine experiences complete mechanical failure. The dealership has indicated that the vehicle must continue to be operated and monitored until catastrophic breakdown occurs before replacement will be approved. Requiring the continued operation of a vehicle with confirmed cylinder wall damage and abnormal oil consumption raises serious safety concerns. Progressive internal engine damage can lead to sudden engine seizure, stalling, or loss of power while driving, which creates a potential hazard for the driver, passengers, and surrounding traffic. Given the confirmed cylinder scoring and ongoing excessive oil consumption, I respectfully request that the federal safety agency investigate.

Filed Feb 20, 2026 · Engine · MN

The engine is burning oil despite all maintenance being up to date and having fewer than 80k miles. Kia of Duluth Service Center checked the oil and said levels were good on 12/31/25. Fewer than 30 miles were driven and it was brought back to the dealership service center on 1/2/26 and diagnosed with total engine loss due to oil starvation. The extended warranty company (JM&A) are denying coverage because the engine failure is due to lack of oil. They have inspected the vehicle. No warning lights ever came on and this is the second time that this issue has been addressed by Kia of Duluth. The engine could have easily overheated and caught on fire or lost power on the road.

Filed Feb 1, 2026 · Fuel system · RI

Oil consumption, causing 8 spark plugs and dangerous driving. Refusing to cover under warranty.

Filed Jan 27, 2026 · Engine · IL

My engine light is on. Codes show cylinder 4 misfire. Code P0304. My vehicle slows down while driving. It takes time to excelerate to a reasonable speed. My vehicle is becoming harder to start each time. I purchased a new battery and replaced spark plugs to no avail. I’ve been told from several mechanics that my engine is bad and needs to be replaced. Kia has refused to replace my engine or help in any way and I feel this is something caused by the manufacture. Others have had the same issue. The vehicle is burning oil and I have practically had to stop driving the vehicle. It is my only means of transportation. I have 113,000+ miles.

Filed Jan 20, 2026 · Engine · GA

The engine began leaking and burning oil, and general engine issues.

Filed Oct 27, 2025 · Engine · WA

My car is burning excessive amounts of oil with no leak

Filed Oct 13, 2025 · Engine · NC

Burning oil at dangerous rates. No leak yet having to refill oil weekly. Burning at a rate of 2q per 1k miles. Car currently has 95k miles and has had regular oil maintenance until this issue began a few months ago. This is a frequent issue with the 2020 Sorrento.

Filed Oct 6, 2025 · Engine · GA

The engine is consuming oil at a rapid rate that could be potentially dangerous. This is happening to other people with the same make and model as well.

Filed Oct 3, 2025 · Engine · PA

Vehicle Information: Make: Kia Model: Sorento Year: 2020 VIN: [XXX] Mileage: ~80,000 miles Complaint Summary: I am filing a complaint regarding excessive engine oil consumption in my 2020 Kia Sorento. The vehicle burns oil between regular oil changes, requiring frequent top-ups. There are no visible leaks, and this consumption poses a serious safety risk, including potential engine failure or fire hazard. Detailed Description: I purchased the vehicle used from a Kia dealership. I requested an oil consumption test from the dealership, but they refused, stating the vehicle is out of warranty. I contacted Kia Consumer Affairs, and they also refused to authorize the test or provide assistance. This engine issue is widely reported by other owners of the 2020 Sorento and similar Kia vehicles, particularly those with Theta II / GDI engines, which are known for oil consumption problems. The vehicle has approximately 80,000 miles, and the oil consumption is significant enough that I must frequently add oil between changes, creating a safety concern. Actions Taken: Requested an oil consumption test from local Kia dealership — refused. Contacted Kia Consumer Affairs for assistance — refused. Maintained detailed records of oil use and maintenance. Request: I request that the federal safety agency investigate this oil consumption issue for my vehicle and the 2020 Kia Sorento model line. I also seek guidance on any recalls, service campaigns, or safety actions related to this defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)