General Motors (GM) is making headlines again, but this time not because of a launch or innovation, but due to a new class action lawsuit that has set off alarms among its owners. If you have a vehicle with a 6.2-liter V8 engine, it's important that you read this.
The root of the problem: V8 engines with serious defects
The problem affects approximately 600,000 vehicles in the United States equipped with these engines. According to the lawsuit filed in May 2025 in a federal court in Pennsylvania, GM is facing serious accusations. The defect could cause a total engine failure, which not only means an unexpected expense for the owner, but also a safety risk behind the wheel.
What's concerning is that GM may have known about the problem for quite some time and didn't act appropriately to fix it from the beginning. That's why drivers feel that the brand has left them stranded.
GM's controversial solution: thicker oil and its consequences
GM suggested that to avoid damage, drivers should use a motor oil with higher viscosity. However, this isn't a perfect solution. According to the lawsuit, this measure causes an increase in fuel consumption of between 3% and 4%.
In practical terms, this translates into an extra expense that could add up to $1,000 over the vehicle's lifespan. Drivers face a dilemma: risk the integrity of the engine or spend more on gasoline. Neither option is fair or sustainable for those who trusted GM when buying their car.
Class action lawsuits and the fight for justice
This isn't the first time GM faces lawsuits over problems with its vehicles. In addition to the recent one filed by Thomas McNamara and six other plaintiffs, there are already open cases related to similar defects, such as the Houchim case against General Motors LLC.
The affected parties seek not only financial compensation, but also for GM to take responsibility and offer solutions that don't further harm users. The attorneys seek compensation, fees, and a jury trial to show the extent of the problem.
What should affected owners do?
If you have a vehicle with a 6.2-liter V8 engine, the first thing is to stay informed. Check if your car is included in GM's recalls or inspections, although many owners believe these aren't enough.
It's also advisable to consult with an attorney specializing in consumer law to learn about your options. The class action lawsuit opens the door for affected owners to join together and seek compensation without having to start an individual legal process.
Finally, stay alert to news and official notices from GM. Being well informed will help you protect your investment and your safety behind the wheel.