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

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.

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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3,133 thoughts onHyundai class action alleges excessive oil consumption

  1. Melinda Soper says:

    My 2016 Kia Optima with a Theta 2 GDI engine had 90000 miles on it when the engine stalled. The Kia dealership was quick to say they definitely wouldn’t cover it under their warranty, so THANK GOD my own warranty covered the engine replacement.
    Almost exactly 1 year later my engine has died again, the exact same way it did the first time. I’m terrified to take it into the dealership bc if they tell me they won’t replace my engine this time, I have no other option. My original warranty that I paid for is now expired. I’m literally left walking my son to and from his school everyday AND walking to and from work! The stress that puts on a parent, a mom, is indescribable. I was already trying my hardest and now this problem again….yayyyyyy
    I loved my car when I first got it. It’s literally been “my baby”. I’ve spent wayyyy too many afternoons washing and waxing it til my arms hurt bc I absolutely loved that car. Now I just feel tricked KIA! I feel swindled into buying a car that you guys KNEW was faulty, but still sold everyday. Not to mention the theft crap lately. My back window was shot out RIGHT NEXT to my 8 year old son so some teenager could tik tok himself joyriding in my stolen car THAT HE STARTED WITH MY OWN PHONE CHARGER!
    This isn’t right Kia! ITS NOT RIGHT!!!

  2. James says:

    We have 2013 Hyundai ELANTRA with 202,000 miles and they will not cover the valve cover gasket. Too many mile. Should this make a different? The cost is $1,300. Need help

  3. Brian James says:

    I have a 2010 forte hatchback and I’m the second owner but as of last month we’ve only put 30k in miles on it being it to 115k miles and the engine started making this sound like something is loose inside the engine or almost feels. Like a plate in the dishwasher that’s loose something keeps knocking around in it and this after we took in on the recall what do I do now?

  4. Paul g Figueroa says:

    2014 hyundai santa fe limited v6 same problem loss of oil without signs until motor blew. Replacing with uses and labor around 7 plus thousand. I have three kids and I nor they will ever buy another hyundai and I will pass my experience along. Second owner so hyundai uses as excuse not to honor or stand by their faulty product. Vehicle had 96000 miles now a paperweight. Shameful.

  5. Dixie Dalton says:

    Also had a 2018 Hyundai Sonata. Would get the oil changed and midway between the next oil change would have to add another five quarts of oil. Finally found out that the oil was being soaked up in one of the spark plugs. Took it to dealership and they basically said that the engine was bad, but could not do anything until it totally broke down. Traded the car for a SUBSTANTIAL loss.

  6. Christina Polizzotto says:

    I have a 2018 Hyundai Elantra I have the car for 5 years now. In December 2023 my car started to stall on me and make a ticking noise when I drove it. I took it to Hyundai they told me I was burning oil. I only had 22,000 miles on the car. I had to pay for them to fix it. They Here we are again January 2024 and my car is doing the same thing! I always take my car for oil’s changes. . I’m really upset by this.

    1. Melinda M Soper says:

      Exactly the same situation

  7. Cheryl says:

    I have a 2017 Hyundai Sante Fe that the engine went with 80,000 miles. Hyundai would not pay for the engine since I was second owner. I had to pay out $5000.00 to have engine rebuilt.

  8. Cheryl says:

    I have a 2017 Hyundai Sante Fe that the engine went with 80,000 miles. Hyundai would not pay for the engine since I was second owner. I had to pay out $5000.00 to have engine rebuilt.

  9. Cheryl says:

    I have a 2017 Hyundai Sante Fe that the engine went with 80,000 miles. Hyundai would not pay for the engine since I was second owner. I had to pay out $5000.00 to have engine rebuilt. I feel with such low mileage and known engine issues Hyundai should have paid for the engine replacement.

  10. Cheryl says:

    I have a 2017 Hyundai Sante Fe that the engine went with 80,000 miles. Hyundai would not pay for the engine since I was second owner. I had to pay out $5000.00 to have engine rebuilt. I feel with such low mileage and known engine issues Hyundai should have paid for the engine replacement. I was without the vehicle for 6 months waiting for engine.

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