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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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3,127 thoughts onHyundai class action alleges excessive oil consumption

  1. WILLIAM TALMADGE says:

    I’m trying to get an engine replace on a 2019 Hyundai elantra Limit now

  2. A M says:

    I drive a 2017 Hyundai Tucson that I bought from Honda in March 2020. A few months after having the vehicle, my car completely stopped on its own on the interstate. Honda said my engine was blown & initially claimed negligence on my part which was later found to be false because I faithfully got my oil changed. After $8k & 6 months of waiting, I finally got my car back only for it to happen all over again! Now my car is at Hyundai after “fixing” the recalls yesterday and having my check engine light come on, blinking today!!!!

  3. HOLLY M VAN GEYTEN says:

    I have a 2018 Santa Fe. I am going through the oil distribution testing now.

    When I had my inspection Feb 2021 I had my oil changed. By April 2021, the same mechanic questioned if we did the oil and I said yes. They topped off my oil.

    Every few weeks to every month/other month I was putting in several quarts of oil.

    I had friends who are mechanics tell me to get it looked at through the dealer.

    Finally I took it to Hyundai in my area and they started the distribution testing. First two times were 4.5 liters, last was 3.5; however, the last was in February 2022 when I had my next inspection and told I had no oil. Hyundai asked me to wait until the 1,000 mile mark or for my light to turn on.

    I am hoping warranty will cover but they want me now to prove all my oil changes.

    I owned two previous Hyundai’s that never had this issue

  4. Doug Cook says:

    I have a 2015 Sonata it stared to use 1 qt of oil. Sometimes I had to Add 1 quart every 300 then later every 1000 or 1500

  5. rahmatullah khan says:

    Add me

  6. Christine Abelow says:

    I recently traded in my Hyundai Santa Fe with this exact problem. I was still making payments on the vehicle and had to carry a $3500 loss forward because the trade in value was so low. The mechanic who did my oil changes every 3,000 miles recommended I trade it in ASAP before it stopped running and had no trade in value. Every 3000 miles I took it in for an oil change and it was practically bone dry. I was on a first name basis with the technicians / mechanics . Please keep me posted on this case.

  7. Claudia Smigel says:

    I just traded on my 2015 Hyundai Sonata which had this problem, Cpnstaly had to replace oil. Now I have a 2017 Elantra and have not notice anything yet..Add me

  8. Heather says:

    Add me

    1. Jed Klang says:

      Hi
      I recently started having the same issue in regards to oil consumption. Dealer wants to do a fuel flush and oil change to monitor but wants to charge over $300.

      1. Jed Klang says:

        2018 Hyundai sonata and started having issues at 33k

  9. Cindy Character says:

    I have 2013 Elantra
    What should I do
    No problems so far

  10. Marisol wilson says:

    I have a 2015 Hyundai Sonata and I have that problem with my oil consumption

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