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. Tye Male says:

    2018 Hyundai Tucson “passed the oil consumption test” using 1 qt every 1400 miles. Warranty engine: REJECTED. Now, the catalytic converter is plugged. Anyone wonder why? Yup, you can figure that one out. I really just want out at this point because the dealership is not helping.

  2. Jennifer Oliver says:

    Are we sure the 2016 Azera is also not included? My engine is dead 90k miles and they refuse to honor the warranty because they say there is sludge residue in the engine!

  3. Jason Miller says:

    I have a 2017 Hyundai Santa Fe Sport with the 2.4 GDI. The vehicle has 160K miles and uses 3.5quarts of oil every 1K miles. There is no warning indication light for low oil. The knock sensor code light come on occasionally even after replacement.P1326. Have always taken care of this vehicle. Can’t believe it has this many faults. Getting too expensive to drive plus risking a blown motor,making it undependable.

  4. Thomas Keene says:

    I have a 2017 Hyundai Santa Fe Sport with the 2.4l engine. It has 88,000 miles. Oil consumption is getting worse very quickly. In the winter/spring of 2022 it was going through about 1 quart every 4-500 miles. I keep meticulous records and it is now burning through a quart every 200 miles. The Hyundai dealer doesn’t care because I am not the original owner. Can I join the class action suit?

    1. Jason Miller says:

      I have a 2017 Santa Fe Sport with the 2.4GDI. It has 160K miles and has used 3.5 quarts of oil within one thousand miles!

    2. Nanci C says:

      I’d also like to know how to join the suit. 2017 Hyundai Santa Fe Sport and almost completely out of oil without any check-engine light! Just had the dealership do a thorough inspection before my 100k mi warranty runs out and they said “everything is great!”. Bought the extended warranty and I feel doubly scammed!! How do we get more info on joining forces? We’ve all been robbed! Single mom of 2 college kids. I can’t deal with a blown out motor!

      1. Jeanine Butler says:

        Let’s stay in touch and find a way to sue Hyundai.

  5. Jason M Foreman says:

    I bought a 2014 Sante Fe Sport in October of 2021, 6 weeks after buying it I began having issues. It now consumes a quart of oil a week, not leaking, consuming. On 9/23/22 the engine failed. Code P1326 which is the “knock sensor” issue caused by the oil consumption issue. On 8/27/22 I had an oil change, I’ve since added 4 quarts of oil. I added a quart of oil on 9/23/22 and today, while being inspected it was already down a quart. I have spoken to Hyundai and the dealership I purchased it from and neither will help. So I now have a car I paid $12,000 for and is presently valued by Hyundai for $11,355 in working condition, and its worthless. Everywhere I turn I get told I can’t be helped. I wish to be added to this class action lawsuit or if a lawyer thinks they can help me, call me.

    1. Ed Fisher says:

      I have a 2013 Hyundai Sonata Hybrid with exactly the same problem as all the others. It is being towed back to home as I am writing this. The Dealer and Hyundai have refused to honor any warranty because I am not the original owner. I`d like to join the class action suit

    2. Stephanie Bushore says:

      I agree.. I have a 2013 sante fe sport that was purchased for my son. We just paid $15k for it. . Engine stopped working at a red light.. it was repaired and new engine installed. NOW – he cannot drive one hour without having to add oil and coolant. No one will help. I would like to be added as well.

  6. Laurent Vallat says:

    We own a 2015 Hyundai Tucson w/ 70k miles that is paid off next month. Of course it is losing oil, (about 1 every 1000 miles), I say losing because it isn’t leaking or smoking. Where is it going? I am a mechanically knowledgeable person. I have worked on all my motorcycles and cars before all the electronic stuff. Why is it that my 21yo BMW doesn’t burn more then 1/4qt every 10000 miles and this pretty much ruined engine is burning 1qt every 1000 miles?
    They are doing the 4th oil consumption test now. This engine makes knocking noises when accelerating and doesn’t have the “pep” it use to if a small 4 cylinder engine pulling ost 4k lbs can be called peppy!
    Hope something comes out of this.
    Oh btw, I do all my oil changes and only have done 5 at different locations while I was having brakes/ tires etc done. No I do not have receipts for all the ones I have done, call me ignorant but didn’t think I would have to prove myself right.

  7. Shelly Watson says:

    I have a 2016 Hyandai Sonata we have been through the oil consumption test once already and already need it again. We get severely low on oil the closer we get to 30,000 miles. We use the high mileage oil which costs more just to try to get it to last longer. This is not the fault of our own being we get oil changes regularly. This is very frustrating.

  8. Kevin Perkins says:

    I have a 2017 Hyundai Tucson that is consuming excessive oil. The vehicle has only been to the dealership for maintenance and after 5 years it finally gets paid off next month, as well as a majority of the things covered under warranty no longer being covered.
    Every time they do an “oil consumption test” everything comes back as all good nothing wrong here. but have documented that there is no visible leak & they don’t know why the oil is disappearing. Have been repeatedly told to just check the oil once or twice a week and top it off when needed.
    Told to bring it in when there’s a problem, but then have to wait 2 – 2 1/2 months to be seen for said service.
    Engine has started making odd noises, accelerates randomly, feels like it’s slipping gears, & there is no indication of when oil levels are low *Indicator light does NOT come on* only know it’s low when the Check Engine light comes on

  9. Heather Krueger says:

    I have a 2016 Hyundai Sonata. I get about 2500 miles before my oil is completely out – and this is using an oil that should get me 6000-7500 miles. Now my engine is having issues with misfiring cylinders. I honestly believe my car should have been part of the engine recall because everything described there has been happening to me.

  10. Wayne Thompson says:

    My 2018 Hyundai Elantra is burning too much oil bought it 1year and 6months ago Im thinking about getting rid of it before warranty ends, plus the issue with thieves being able to steal hyundai and kia using usb thats a whole other issue

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