Logotype of Hyundai corporation.
(Photo Credit: Arsenie Krasnevsky/Shutterstock)

Update: 

  • A judge dismissed a class action lawsuit filed by a group of vehicle owners against Hyundai Motor Co. in a California federal court. 
  • The class action lawsuit claimed a number of Hyundai and Kia model vehicles contained an engine defect that caused them to use an excessive amount of oil.
  • The vehicle owners argued the alleged defect, in addition to costing them money for the excess oil, caused the vehicles to stall and eventually fail. 
  • Court approval of the dismissal was not required as the class had not been certified nor proposed to be certified for purposes of a settlement, according to court documents. 

Hyundai excessive oil consumption class action lawsuit overview:

  • Who: A group of Hyundai and Kia vehicle owners are suing Hyundai Motor Co.
  • Why: The drivers allege numerous models of Hyundai and Kia vehicles are equipped with defective engines that use excessive amounts of oil, stall and eventually fail.
  • Where: The lawsuit was filed in a California federal court.

(April 20, 2022)

Hyundai makes numerous models of Hyundai and Kia brand vehicles with defective engines that use excessive amounts of oil, costing their owners huge sums of money, a new class action lawsuit alleges.

On Apr. 12, eight owners of Hyundai and Kia brand vehicles filed a class action lawsuit against Hyundai Motor Co. in a California federal court, alleging violations of federal warranty laws.

The Hyundai excessive oil consumption lawsuit alleges that numerous models of the automaker’s vehicles are equipped with defective Nu, Gamma, Theta, Lambda and Kappa engines.

The defective engines allegedly use excessive amounts of oil, stall and eventually fail. The drivers say Hyundai should have issued a recall for the vehicles a long time ago but hasn’t.

As a result, thousands of Hyundai and Kia owners and lessees have allegedly been forced to constantly check the oil levels, and oil must be added to the engines more frequently than even the owner’s manuals recommend, Car Complaints reports.

The engine issue has flow-on effects like reduction in engine lubrication due to crankshaft submersion and gaskets and seals damage, which leads to oil leaks.

The plaintiffs also claim that oil in their vehicles migrates to places where it shouldn’t be, damaging the combustion and exhaust systems.

This allegedly causes “abnormal wear of engine parts, oversaturation of carbon and deposits of oil sludge, ultimately requiring a costly engine rebuild or replacement.”

Automaker should honor warranty claims outside terms, Hyundai class action says

The plaintiffs allege that Hyundai should honor customers’ warranty claims even when the warranties have expired. 

According to the lawsuit, Hyundai can’t adequately repair the oil consumption problems and doesn’t offer any reimbursement for out-of-pocket costs caused by the issue.

The class action states customers must suffer through long wait times for replacement parts, “and in most cases do not receive required engine replacements.”

The cars with the allegedly faulty engines include the 2012-2020 Hyundai Elantra, 2009-2018 Hyundai Genesis Coupe, 2019-2021 Hyundai Kona, 2020-2021 Hyundai Palisade, 2010-2012 and 2015-2021 Hyundai Santa Fe, 2009-2010 and 2015-2021 Hyundai Sonata, 2011–2021 Hyundai Sonata Hybrid, 2010-2013 and 2015-2021 Hyundai Tucson, 2011-2021 Hyundai Veloster, 2020-2021 Hyundai Venue, 2010-2021 Kia Forte, 2017-2020 Kia Niro, 2011-2020 Kia Optima and Optima Hybrid, 2012-2021 Kia Rio, 2011-2020 Kia Sorento, 2012-2021 Kia Soul, 2011-2020 Kia Sportage, 2018-2021 Kia Stinger and 2022 Kia K5.

Meanwhile, Hyundai has expanded its recall of vehicles with an exploding seat belt part issue that has caused multiple injuries to include 6,240 of its 2021-2022 Elantra and 2020 Accent vehicles. 

The plaintiffs are represented by Nye, Stirling, Hale & Miller LLP, Sauder Schelkopf LLC and Walsh, PLLC.

The Hyundai Oil Consumption Lawsuit is Cho, et al., v. Hyundai Motor Company, LTD., et al. in the U.S. District Court for the Central District of California.

Are you one of the drivers affected by an allegedly faulty Hyundai engine? Let us know in the comments! 


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3,221 thoughts onHyundai class action over excessive oil consumption dismissed

  1. Kaye Sanders says:

    I have a 2016 Kia Sorento. I am starting to have the same issues. Have to keep a few quarts of oil on hand because of low oil.

  2. Sal says:

    2016 Sonata with 38,000 miles and it’s toast. Yes 38,000 miles .Since we are the second owner they won’t honor the extended warranty AND the paint is coming off in sheets ! And again sorry it’s out of warranty. I’ve seen cars from the 80s that do not have paint coming off in sheets front to back. Never will buy a Hyundai again

  3. Larry D Terry says:

    I have a2015 Hyundai Tucson and my engine ultimately burned up because of the problem with the oil consumption issue.It begin loosing pressure after putting oil in it,and then the engine light blinked but didn’t stay lite,just flashed and then upon a diagnostic tester it showed the crankshaft sensor and it replaced the part than it continued to not improve so checked again on diagnostic it showed a knock sensor and driving home it the engine died and would not start again .

  4. Janice Hay says:

    2017 Hyundai ELANTRA 135,000 miles. Burns oil terribly there are no leaks under the car every time I drive it I have to check the oil or it will run out. Loved this car until now something has to be done and they should not get away with doing this to people that bought these cars in good face and received terrible engine. Need info on how to join lawsuit

  5. Roy L Wornat says:

    High oil consumption . 2017 Hyundai Santa Fe Sport current milage 99000 . Noticed motor ticking at 93000 . Checked oil level and found low 3000 miles since last oil change . Added 5 quarts to fill and did complete oil change .They checked for leakage found leakage everywhere valve cover gasket, oil filter gasket, oil pan gasket yet not a drop on concrete below parked vehicle . I have never had a vehicle loose so much oil without showing on concrete . If it is burning oil , that automatically destroys catalytic converter . With converter plugged the crankcase will become pressurized resulting in numerous leaks . The car has been at dealer for a month no loaner available .

  6. Jim G. says:

    Have a 2016 Elantra GT with 140K miles. Need to check and add oil every other week. Results in an oil change every month and I just change out the filter every 3-4K miles. Still can’t tell where the oil is actually going.

  7. Dan Laseria says:

    2018 Hyundai Sonata Excessive Oil Consumption

  8. Andres Lelarge says:

    Same issue with Hyundai Tucson 2017. in Ontario Canada. I went to dealer and run a oil test consumption test showing at the end of that indeed it was consuming more than normal. They submitted to Hyundai Canada but they refused tondo anything about it

  9. AJ says:

    This has been happening to my 2108 Optima engine since I bought it in 2018. Oil runs dry within 3k and just received a knock sensor code! Always knew these engines needed extra care but Kia/Hyundai have to do and be better when it comes to knowingly selling defective engines!

    1. Karen B says:

      I have a 2017 Hyundai Sonata and putting in a quart of oil every month. So what are we supposed to do if Hyundai won’t issue a recall? I’m in Florida..what are my options?

    2. Larry Terry says:

      My 2015 tuscon started doing all the same things

  10. Fred Wilson says:

    I have.a 2023 Santa Cruz 2.5L
    It’s has used 2 quarts of oil and has only 5900 miles on it. Dealer states that is normal . I was born at night just not last night . One more try and filing a lemon law suit

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