2021 Hyundai Tucson: excessive oil consumption

Filed Nov 6, 2026 · Engine · IL

COMPONENT FAILED: Engine / Powertrain assembly suffering from severe, documented manufacturing internal oil consumption. Available for inspection upon request. SAFETY RISK: My safety was severely put at risk by Napleton Hyundai (2600 Michigan Ave). On XXXX, Service Manager Heliose explicitly instructed me to deliberately drive the vehicle with known severe fluid loss until the engine completely "locked up" and seized on the road so Hyundai would replace it under warranty (Campaign TXXM). Advising a consumer to drive a vehicle until catastrophic engine seizure occurs at high speeds on public highways creates an extreme hazard—risking sudden stalling, loss of control, and major collisions. Furthermore, the dealer falsified a "goodwill" oil test by completely omitting mandatory tamper-evident safety seals on the dipstick and cap, releasing an unverified, unsafe vehicle into traffic. CONFIRMATION/INSPECTION: Severe oil burning was confirmed by Valvoline on XXX, where a fresh oil change ran completely dry within weeks with no external leaks. Napleton Hyundai acknowledged the engine warranty extensions (T6G, TXXM, DTC P132600) on XXX, but held the test hostage behind an unauthorized $1,400 chemical cleaning fee. The car has not been inspected by police or insurance as a crash has been avoided through manual monitoring. The service intake person ([XXX]) put on my invoice oil consumption check. I checked my engine to see if they placed any (Tamper-Evident Sealing) and the technician did not apply security seals, tape, or paint marks to the oil filler cap, dipstick, and drain plug! They fix this so they would not be responsible for my car engine WARNING SYMPTOMS/TIMELINE: Rapid internal oil depletion causing the engine to run dry within a 30-day window. Symptoms started after a routine oil change on XXX. No dashboard warning lamps are active, making the sudden dry engine an invisible, highly dangerous mechanical hazard. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 22, 2026 · PA

This vehicle burns oil at an alarming rate. I am getting oil changes every 3K miles, and when I take it in, the dipstick is dry. I receive no oil lights to tell me it is low. I just had to get spark plugs and the mechanic at the garage told me this was due to the oil consumption issue in these vehicles. I am at 71,000 miles.

Filed Jun 9, 2026 · Engine, Fuel system · MD

My car is burning oil. I have returned multiple times to have it serviced and checked for leaks, but no leaks have been found. Before reaching the recommended 3,000-mile oil change interval, the oil level drops below the minimum mark on the dipstick. In addition, my engine has started making a knocking noise, which is very concerning.

Filed Mar 26, 2026 · Engine · IL

I already replaced 3 catalytic converters and I am at 31000 miles. They finally decided to do an oil consumption test but it passed. The other day my car started shaking and my ignition coil and spark plugs were also bad which somehow is related to my engine issues.

Filed Feb 9, 2026 · Engine, Fuel system · SC

The vehicle experienced a catalytic converter efficiency failure that was confirmed by an authorized dealership in January 2025. The dealer indicated the catalytic converter required replacement; however, the replacement was not performed, and the vehicle was returned to service with an unresolved emissions defect. Less than one year later, the vehicle developed recurring emissions system failure, loss of power, drivability issues, and repeated warning indicators. The vehicle is currently out of service while additional components, including oxygen sensors and spark plugs, are reported to be affected. The manufacturer is declining to replace the catalytic converter and is attributing the condition to oil consumption despite the prior unresolved emissions failure. The issue has been confirmed by dealership diagnostics and has resulted in prolonged loss of use of the vehicle. This appears to be a continuing engine and exhaust/emissions system defect that was not properly remedied when first identified and may affect safe operation of the vehicle.

Filed Jan 9, 2026 · Engine · IL

Oil Consumption problems

Filed Jan 9, 2026 · Engine · MA

I am the original owner of this car and in June 2025 I brought my car to Hyundai from noises and they told me it had no oil despite me being up to date with oil changes on the vehicle. They told me they were going to do an oil consumption test and once they did that the engine was denied. 6 months later 3 days after an oil change and no check engine light on, the engine fails while I’m on the side of the highway. This car is not safe. Check engine light was not on and I am always up to date with my cars maintenance.