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. Ryan Anderson says:

    i have a 2018 Hyundai sonata with the exact same oil issues. I can get a oil change today and in a week I need oil in my car because its dangerously low. WITH NO LEAKS. I did a check with my vin yet they say my car is not one that is impacted. I will be contacting the attorney general if no one helps resolve this matter.

  2. Sarah says:

    Please add me. My 2017 Hyundai Santa Fe Sport have been having oil issues for several months. They tell me they have to go through all these different oil consumption tests in order for Hyundai to pay for a new motor and everything has been out of pocket for me. Running out of oil every two week.

    1. Joe D. says:

      2017 Hyundai Elantra SE

      Regularly performed oil changes never had a problem then all of a sudden around 80,000 miles noticed that it kept mysteriously burning a lot of oil.

      8,000 miles past warranty and it develops a horrible knock can’t find anybody to tell me why and Hyundai is saying they won’t warranty it but wants to charge me $10,000 to replace.

  3. Josh Goodfellow says:

    I am most defintely affected by these faulty Hyundai Engines making oil magically disapper. My 2014 Hyundai Veloster Turbo is currently at the dealership, and the mechanic is working on getting a new engine approved through corporate. I’ve had to supply crazy amount of records (oil changes, service records, etc), and will need to be without my car for awhile. Hoping they’ll approve a full engine replacement

  4. Judith A Glidewell says:

    2015 Kia Sorento, oil has just started disappearing. Now oil light comes on when idling and called dealership and they said it takes Kia 5 to 6 weeks to get a new motor to them and he has 7 in line to get them. I am to drive it till engine blows..I take my terminal husband 6 hours round trip every 2 weeks for treatment..I cannot have him on side of the road.

  5. Cynthia Pintado says:

    My 2014, Hyundai Elantra coupe was burning oil at an abnormally fast pace. I thought I was overworking the car, I would have to put extra oil in between oil changes and ultimately ended up with the sludge problem. I took it in, had them clean the problem and asked them to check the car for problems. Hyundai technician said the car was in great condition. 1000 miles later the catalytic converter went out. Had a new one installed at $3000 and then the car started knocking 500 miles later, left me stranded.

  6. Ken Sproge says:

    Ken Sproge, Myrtle Beach SC
    I have a 2015 Hyundai Santa Fe sport 88,000 miles engine just seed one day on the road no oil left in the engine dealer said he want a proof of oil changes gave him the last four years Hyundai said it wasn’t enough information and if there was any sludge in the engine it would not honor any warranties the car has a 10 year hundred thousand mile warranty the dealer said there’s nothing they can do I’ll have to replace the engine at a cost of $8000 I need help

  7. Butch says:

    My Hyundai Sonata 2017 LE burns through the oil since 48,000. I refill the oil every few weeks…My mechanic says the only fix is a new engine, costing more than $5000…outrageous!!

  8. Gregory Johnson says:

    2017 Santa Fe I have to add 2-3 quarts between 4-5000 mile oil change intervals

  9. Kenneth Sproge says:

    I have a 2015 Hyundai Santa Fe sport where the engine just stopped running no warning lights nothing the Hyundai dealer in myrtle beach South Carolina said he woulld put the claim into Hyundai but if there was gunk in the under the valve covers they would not honor it after rejecting all the oil claims and changes that I submitted they said that there was gunk under the valve covers and they would not honor it I need to be added to this class action lawsuit. The engine only had 88,000 miles and the oil was changed every 3,000 to 3500 miles

  10. Mary Hanneman says:

    Please add the 2013 Santa Fe sport to your class action suit, was just told it burns excessive oil due to its faulty engine and I will have to check it constantly.

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