Kia Forte oil consumption problems

Filed Oct 6, 2026 · Engine · SD

My engine is failing due to excessive oil consumption despite having proof of regular oil changes and maintenance. My car has been inspected, and the dealer has stated this is due to a known manufacture defect. My safety and others are at risk because my car stalls when I decrease speed and I cannot accelerate fast enough to get up to the speed limit creating a risk anytime the speed limit changes or when I am using an on ramp to get onto an interstate or highway. Kia dealer has confirmed the issue and is currently working on an estimate for a new engine. The Kia dealer is the manufacturer of my vehicle. The warning sign before this happened was my car stalled a couple times, then the check engine light came on within 10 miles. I then took it in to get looked at where the Kia dealer diagnosed the issue as the known manufacturer defect with the engine burning oil too quickly. These issues first appeared on August 12, 2026. I have attempted to get Kia corporate to assist with repairs through a Goodwill Request due to the safety issues with driving my vehicle in its current condition, to no fault of my own. Kia denied my Goodwill request. That case number is 26467063.

Filed Oct 5, 2026 · Engine · 112,000 miles · AR

The contact owns a 2014 Kia Forte. The contact stated that oil was leaking underneath the vehicle. The contact stated that at start-up the check engine and low oil pressure warning light remained illuminated with an abnormal burned oil odor. The vehicle was taken to a dealer to be diagnosed, and the contact was informed that the engine was failing and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The contact referenced the federal safety agency Campaign Number: 20V750000 (ENGINE); as a possible cause for the failure. The failure mileage was 112,000.

Filed Aug 23, 2026 · Engine · IL

Engine burning excessive oil over a quart in 1000 miles. Catalytic converter code P0420 because of the excessive oil burning. Oil was always changed within the specified dealer milage range.

Filed Aug 12, 2026 · Acceleration, Engine · CA

The systems affected appear to be engine, powertrain, and vehicle speed control. My 2014 Kia Forte, VIN [XXX] has approximately 118,000 miles. Since purchase in November2025 from Wondries Toyota, the vehicle has had repeated high RPM, poor acceleration, and loss of power when entering freeway on-ramps and driving uphill. It struggles to accelerate while merging into faster traffic, creating a safety risk as vehicles behind approach at higher speeds. Two different mechanics verbally advised that there may be an oil leak or oil consumption issue affecting the catalytic converter. I replaced the catalytic converter a couple months ago, but it became clogged again and the power loss continues. The vehicle is available for inspection. The problem has not been inspected by the manufacturer yet, and I don’t have a written diagnostic report at this time. There was no crash, fire, injury, or fatality, and no police report. Warning lights are unknown. The exact incident date is approximate. The issue has been ongoing since after purchase and occurs multiple times, especially during freeway merging and uphill driving. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 6, 2026 · Engine · IN

respectfully submit this correspondence to request formal assistance regarding my 2015 Kia Forte EX, a vehicle covered under the class settlement. The vehicle is exhibiting severe symptoms consistent with KSDS‑related engine failure, yet the required diagnostic protocol has not been completed by the servicing dealership. The KSDS software update was performed in May 2022, and the vehicle currently has only 92,000 miles on the odometer, placing it well within the settlement’s mileage parameters. Despite this, the dealership has failed to follow KSDS procedures and has not produced any written documentation of its findings. All communication with the dealership has occurred exclusively by telephone. Despite repeated attempts to obtain information, I have not received a diagnostic sheet, video recording, code report, KSDS documentation, or any written summary of the vehicle’s condition. All statements provided to me have been verbal and inconsistent. My **primary symptoms** include: - Persistent and worsening **engine ticking** - **Burning excessive amounts of oil** - Activation of **limp mode** - A **flashing check engine light** These symptoms align with known indicators of KSDS‑related engine failure and warrant immediate and proper diagnostic evaluation under the settlement terms. The dealership has verbally stated that the issue may be related to **spark plugs and ignition coils**. However, plugs and coils are a **well‑documented secondary symptom** of rod bearing failure, caused by oil contamination and misfires resulting from internal engine damage. This further supports the likelihood of KSDS‑related engine failure. Kia corporate has not referenced documentation of any kind. They have not requested it, indicated they are awaiting it, or provided guidance regarding its submission. Instead, corporate has repeatedly stated that they “must defer to the dealership,” despite the dealership’s failure to perform or submit the required KSDS diagnostic materials.

Filed Jun 16, 2026 · Engine · 124,000 miles · TX

The contact owns a 2019 Kia Forte. The contact stated that after driving to the local store and turning off the vehicle, after returning to the vehicle, the vehicle failed to restart. The vehicle was towed to the local dealer to be diagnosed. The vehicle was diagnosed with a timing chain failure caused by low engine oil. The contact stated that prior to the failure, the vehicle had experienced excessive oil consumption and engine oil was constantly added to the vehicle. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 124,000.

Filed May 26, 2026 · Engine · AR

This Forte was not neglected and it was not abused. Nearly 90% of its miles came from highway commuting and interstate travel. It was completely stock, never modified, never driven hard. More importantly, it received fully synthetic oil changes every 3k-4k miles since new, well ahead of what Kia or the oil manufacturer even recommends, because I intended to keep this car long term. All of that is verifiable through Carfax. The engine failure came without meaningful warning. While driving, I noticed an unusual noise and pulled over as quickly as safely possible. I checked the dash expecting some kind of indicator and found nothing. No check engine light, no oil pressure warning. A nearby mechanic found the engine more than 2.5 quarts low on oil despite the vehicle being only about 3,300 miles into a fresh synthetic oil change. There were no external leaks. No oil spots at home, none at work. Nothing to explain where that oil went. After topping it off, the noise briefly stopped. With no warning lights on and the noise stopped, I thought we had caught it in time. I even felt confident enough to also have the mechanic change the transmission fluid as it was about due again. However, a few miles later, the engine suffered complete failure. Violent shaking, severe knock, then the check engine light came on. I shut it down immediately and pushed it home. Once home, I checked the oil again and found it had unusually darkened in an extremely short period of time. The vehicle has not been driven since and is currently inoperable. What troubles me most, beyond the financial loss, is that this vehicle gave me no real opportunity to save it. The oil pressure warning light never illuminated. More than two quarts of oil vanished within a single service interval with no external source and no indication whatsoever, even with checking the level periodically. I went above and beyond in maintaining this vehicle and still lost the engine. This could have been a catastrophe on the road

Filed May 8, 2026 · Engine · IN

While driving, the vehicle suddenly began knocking severely, smoking, leaking oil, and then shut off unexpectedly without adequate warning. This created a serious safety hazard and near fire risk. The engine assembly failed catastrophically. Dealership inspection documented: connecting rod punctured engine block bearing material found in oil pan broken piston components in oil pan oil leakage underneath engine complete engine seizure/failure The dealership confirmed and documented the failure and replaced the engine assembly. Repair records and failed components should still be available for inspection through the dealership. My safety and the safety of others were placed at risk because the vehicle suddenly lost power while driving. Oil leaked from the damaged engine and the engine compartment began smoking. The engine could have caught fire or caused an accident due to sudden loss of power. There were no adequate warning indicators before failure. No meaningful oil-pressure or low-oil warning appeared until the vehicle was already smoking and severely damaged. This failure closely mirrors known Kia engine defect investigations and Recall Campaign SC209 / the federal safety agency Recall 21V259000 involving: connecting rod bearing damage piston oil ring defects excessive oil consumption engine seizure engine stall fire risk Although my VIN is not currently included in the recall population, the documented failure symptoms are substantially similar. I also report that another Kia vehicle in my household, a 2017 Kia Sorento, experienced a separate rod-bearing-related engine seizure despite proper maintenance and documented oil changes. The connecting rod blew a hole through the engine block, causing oil leakage and heavy smoke while driving. The vehicle could have caught fire or exploded, placing my life and others at serious risk due to sudden engine failure without adequate warning. Engine replaced under warranty; concerned for safety after 2 similar Kia failures.

Filed Apr 16, 2026 · Engine · 142,000 miles · AL

The contact owns a 2012 Kia Forte. The contact stated that upon starting the vehicle, the vehicle made an abnormal knocking sound, and there was a burning oil odor coming from the vehicle. The check engine warning light was illuminated. The contact related the failure to the federal safety agency Campaign Number: 20V750000 (ENGINE); however, the contact was unable to schedule an appointment because the dealer was unreachable. The manufacturer was not contacted. The failure mileage was approximately 142,000.

Filed Feb 25, 2026 · Engine · CT

Recently, while my boyfriend was driving my vehicle, the engine suddenly lost power without warning. He had the accelerator pedal fully depressed, yet the vehicle would barely move. He was fortunate to safely maneuver the vehicle off the road. Upon inspection, he discovered there was no oil present in the engine. Critically, neither the low oil warning light nor the check engine light had illuminated prior to this failure, providing absolutely no warning of a severe mechanical problem. After adding oil and performing a proper oil change, the engine began violently shuddering and shaking upon startup, and only then did the check engine light illuminate. The vehicle was immediately towed to an authorized Kia dealership, where I was informed that the timing chain had failed.