Oil Consumption Defect Causes the 2.4L Tigershark Engine to Stall

TL;DR

A serious defect in the 2.4L Tigershark engine causes an excessive amount of oil to be burned during normal operation. Owners must constantly top off the oil and have consumption tests run at the dealership, or risk the engine seizing up and stalling out while driving down the road. A class-action lawsuit wants a nationwide recall.

Tigershark engine
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#engine #lawsuit

Jeep owners say the 2.4L Tigershark engine consumes a quart of oil every 1,000 miles.

Engines that consume a ton of oil are inefficient, irritating, and expensive. But it turns dangerous when the oil indicator system doesn't even alert you when oil levels are low.

The engine has a oil capacity of 5.5 quarts, and if the oil level falls to 3.5 quarts or lower the engine will stall without the oil indicator light kicking on.

In fact, some owners say the light only turns on once the engine has stalled. That's a bit like your bank telling you to check your spending after you've overdrawn your account by $10,000.

Design Defect Burns Off Oil

Control rings at the top of the piston sidewalls are there to prevent oil from entering the combustion chamber.

But a defect in the Tigershark engine means the piston rings don't work correctly with the cylinders. This allows oil to seep past and burn off in the compression cycle.

As the engine loses oil, excess heat and friction will prematurely wear down internal components. At first the engine might stall out. But eventually it'll seize up and fail.

Fiat-Chrysler's new normal?

Fiat-Chrysler (FCA) has been accused of knowing about the problem since 2015 but telling owners the consumption levels are "normal" to avoid a recall.

According to the owner's manual the oil should be changed at 4,000 miles (6,500 km) under normal driving conditions. Even under severe Operating Conditions the manual says the oil message will illuminate as early as 3,500 miles since the last reset.

But owners say the engine consumer a quart every 1,000 miles. So if you follow the recommended interval, you'll cause irreversible damage to the engine.

Affected Models

The 2.4L Tigershark MultiAir II can be found in the following Jeep models.

MakeModelGeneration
Cherokee2014-2020Gen 5
Compass2017-2020Gen 2
Renegade2015-2020Gen 1

The same engine can also be found in certain Chrysler, Dodge, and Fiat vehicles.

The Oil Consumption Lawsuit

A class-action lawsuit was filed against FCA in August of 2020.

The plaintiffs say that by continuing to call the consumption levels "normal," FCA has avoided the tremendous cost of doing the right thing by recalling millions of affected vehicles.Instead, they've left owners to pickup the tab.

The lawsuit is pending.

Affected Models

Jeep Cherokee

PainRank
61.91
Complaints
1846
Reliability
8th out of 9

Jeep Compass

PainRank
15.36
Complaints
374
Reliability
2nd out of 9

Jeep Renegade

PainRank
53.84
Complaints
557
Reliability
7th out of 9

What Owners Say About This Problem

Had problem with engine stall while braking and cornering. Checked oil levels and was over a quart low. Checked oil again just over a week later and was down another quart. Took it to the dealership and had them check oil consumption. I was told that a quart of oil every 850 miles is ok for this model. This is stupid, why would I ever do an oil change, by the time I get to 3000 miles I have pretty much replaced the oil.

Within 16,000 miles our Jeep has burned 6 quarts of oil. In the last 5,000 miles it has gone through 2 quarts of oil. Today it is at the dealership where I was told this is 100% normal. The service advisers immediate told me that GM's burn much more oil and began a rant telling me everyone has this issue.

Oil consumption is ridiculous. Told by dealership that the 2.4L is supposed to burn 1 quart every 2000 miles because it runs hot. Again, this is ridiculous. If I go on a trip across the country, I have to put a case of oil in the back of my brand new vehicle. 11,000 miles now and went through 4 quarts at my expense. No warning given.

My wife's Cherokee has been for some time shutting down on her unexpectedly without any check engine lights or any warnings. At our dealer they informed her that the oil level was very low, close to 2 quarts of oil in the engine when it is supposed to maintain [closer to] 6 quarts. The part that they couldn't answer was why was the vehicle not alerting us of low oil levels.

OK, Now What?

Maybe you've experienced this problem. Maybe you're concerned you will soon. Whatever the reason, here's a handful of things you can do to make sure it gets the attention it deserves.

  1. File Your Complaint

    CarComplaints.com is a free site dedicated to uncovering problem trends and informing owners about potential issues with their cars. Major class action law firms use this data when researching cases.

    Add a Complaint
  2. Notify CAS

    The Center for Auto Safety (CAS) is a pro-consumer organization that researches auto safety issues & often compels the US government to do the right thing through lobbying & lawsuits.

    Notify The CAS
  3. Report a Safety Concern

    The National Highway Traffic Safety Administration (NHTSA) is the US agency with the authority to conduct vehicle defect investigations & force recalls. Their focus is on safety-related issues.

    Report to NHTSA