Two of Japan’s best-reputed automakers, Toyota and Subaru, are in the midst of a massive class-action lawsuit within the United States.
The complaint is focused around reported engine dependability problems in a number of highly popular sports car models — the Toyota 86/GR86 and the Subaru BRZ — which both utilize Subaru’s distinctive boxer engine configuration.
What’s Wrong with These Cars?
The central flaw in the controversy is a technical failure due to excessive application of RTV (Room Temperature Vulcanizing) silicone — a sealant applied in engine gaskets. In the lawsuit, the sealant is claimed to degrade in hot temperatures and find its way into the engine’s oil system, resulting in oil starvation and possible total engine failure.
One of the lead plaintiffs, Lara Young, explained that her 2019 Toyota 86’s engine suddenly died off at approximately 64,000 miles. A mechanic determined that RTV debris had plugged critical oil passages, starving the engine of lubrication and leading to inner damage.
What the Lawsuit Claims ?
Pleaded in a New Jersey federal court, the class-action suit blames both Subaru and Toyota for knowingly selling cars with engines that are “fated to fail prematurely.” The lawsuit alleges that the companies knew about RTV-related problems but kept using the defective method of sealing engine parts.
The cars involved are:
2013–2016 Scion FR-S
2017–2023 Toyota 86/GR86
2013–2023 Subaru BRZ
The suit demands more than $5 million in compensation, stating consumer protection statutes violations, breach of warranty, and negligence.
⚠️ Why It Matters to Car Owners
The vehicles are famous for their sporty performance and driving enthusiasts love them — but today, numerous owners are frustrated. Regardless of repeated complaints and forum threads regarding engine breakdowns, many consumers claim dealerships refuse warranty coverage by attributing owner neglect or “improper maintenance” to the issue.
This legal battle could force both Toyota and Subaru to offer compensation, warranty extensions, or even full repairs to thousands of customers nationwide.
???? A Closer Look at RTV Sealant Use
RTV silicone is frequently utilized in engines for sealing purposes but has to be applied in exact quantities. In accordance with a number of independent specialists, excessive application or misuse may cause RTV particles to shed and be carried by the oil system. Inside, they will become lodged in filters, oil passages, and even harm engine bearings.
Both owners and auto experts have expressed concerns over the production process, implying that these problems are a result of sub-standard quality control or a fundamental design defect in the FA-series boxer engine.
What’s Next for Toyota and Subaru?
So far, neither Toyota nor Subaru has issued a public statement or formal recall on the suit. The result of this court challenge could have far-reaching consequences not only for the automakers, but also on future engine design methodologies in the industry.
If the court rules in favor of the plaintiffs, thousands of car owners might be compensated or reimbursed for engine repairs.
✅ Conclusion: What Should Affected Owners Do?
If you have a Toyota GR86, Scion FR-S, or Subaru BRZ, particularly in the model years 2013–2023, you could be part of the group affected. It is recommended that you document all service history, repairs related to engines, and dealer contacts.
You might also consider speaking with an attorney or staying up to date on the case to understand your choices should the lawsuit continue.