2021 Hyundai Tucson: Burning a quart of oil every 1000 miles
Common wear/failure (not a recall)
Symptoms
Owners of the 2021 Tucson report: burning a quart of oil every 1000 miles. CarComplaints.com lists 1 owner complaints, average mileage 84,150 miles.
NHTSA has 42 owner complaints for the 2021 Tucson in this area. Examples:
- NHTSA complaint ODI #11766298 (filed 09/23/2026): “I took my car in to allen samuals hyundai dealership to have the 9c2 recall update completed on may 15th 2026. ever since then my vehicle has had a rough hesitation or sputtering when driving. on may 18th hyundai released a statement stating there was an issue…”
- NHTSA complaint ODI #11760640 (filed 08/29/2026): “Engine knock sensor went off and now the engine needs replacement due to faulty cylinder rod.…”
Likely causes
Sources do not establish a single root cause; diagnosis is needed. Owner-reported fixes are listed below.
Fix, in plain English
Most common owner-reported solutions on CarComplaints.com: none clearly reported. Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Pro
Internal engine work (lifters, oil consumption, fuel dilution diagnosis) requires engine teardown or dealer software/tests. (Our assessment.)
Cost
No sourced cost range: get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
- CarComplaints.com: Burning a quart of oil every 1000 miles (2021 Tucson)
- NHTSA complaints API, 2021 Tucson
Page last updated .