2015 Hyundai Sonata · symptom sheet
Engine leaks oil
- 29owner reports
- 58,000median miles
- 0involved a crash
Newest report Jun 12, 2026 · checked Oct 2, 2026
642 of the 1,144 complaints on this car are about the engine. 29 of those describe oil leak.
Tick what matches of 29 reports
Oil leak on other Sonata years
No other Sonata model year has enough reports of oil leak for a sheet of its own. See every Sonata year.
What this problem usually is
Oil leak reports usually begin with a spot on the driveway. Some owners smell burning oil or see smoke from under the hood when the leak drips onto something hot. Others only find out because they keep adding oil between changes, or a shop spots the leak during an unrelated visit. A share of them mention the repair falling outside the warranty.
What got replaced
Owners who name the part that was replaced mention the rear main seal (6 reports) and the valve cover gasket (4 reports).
Recalls and investigations
No recall on the engine covers the 2015 model year as of Oct 2, 2026.
NHTSA investigations into the engine on the Sonata
Loss of motive power. Closed dec 12, 2023.
Engine fires. Closed feb 5, 2024, led to recall 23V-877.
Scope and timeliness. Closed dec 22, 2021, led to recall 17V-226.
When it happens
The middle half of failures fell between 3,000 and 75,000 miles, from the 18 reports that gave a mileage.
What owners wrote
“I have to continue to put oil in my car and get my oil change every 30 days due to oil leak. I have been to the mechanic and had my oil gasket changed, engine clean etc⦠and Iâm still buying if oil and getting oil changes. I would get oil change and as soon as it gets close to 30 days my oil light comes on.”
Filed May 21, 2022
“My Sonata is burning excessive oil since January 2022 have to add a quart a week but there is no oil leak.”
Filed Apr 30, 2022
Should you keep driving it?
This page can't tell you that. 0 of 29 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Taking it to a shop? How to describe this problem so it gets found
Other problems on this car
- Engine stalls or loses power while driving 250 reports
- Engine failure, knocking or rod bearing 226 reports
- Check engine light or misfire 171 reports
- Burns oil or oil level rises 83 reports
- Brakes grind, pulse or wear early 76 reports
- Engine rattles or ticks 48 reports
- Vehicle fire 44 reports
- Transmission shudders, slips or shifts hard 41 reports
- Power steering cuts out or goes heavy 36 reports
- Seat belt or seat problems 35 reports
- Hybrid or EV system warning, loss of power 32 reports
- Fuel pump failure 30 reports
- Multiple warning lights come on at once 29 reports
- Airbag warning light or recall 25 reports