Photo by Michał Robak: https://www.pexels.com/photo/mazda-mx-5-in-countryside-18136023/
In a commitment to cleaner internal combustion, Mazda is developing a new four-cylinder engine—Skyactiv-Z—that will replace current Skyactiv-G engines in the U.S. market, aiming for enhanced efficiency and compliance with strict emissions standards.
Mazda has officially announced its plans for the future of internal combustion engines with the development of the Skyactiv-Z, a new four-cylinder gasoline engine that’s set to launch in 2027. This engine, part of Mazda’s ongoing Skyactiv technology lineup, is designed to meet the latest in emissions standards and deliver improved fuel efficiency. The Skyactiv-Z will replace the current Skyactiv-G engine used in U.S. models, while also succeeding the Skyactiv-X engine in international markets.
Mazda disclosed initial details about the Skyactiv-Z engine in August during its quarterly financial report, though further insights were revealed last week by Motor1. According to Mazda, the Skyactiv-Z will focus on achieving a balanced Lambda 1 air-fuel ratio across its entire rev range, a step toward reducing tailpipe emissions even under full power. This balanced combustion approach will help Mazda meet increasingly strict emissions regulations in markets such as the United States, where California Air Resources Board (CARB) standards require cleaner vehicle technology.
Technical Advances and Compliance with LEV IV Standards
While Mazda has not revealed precise details about power output, performance specifications, or whether the engine will be turbocharged, the automaker emphasizes that the Skyactiv-Z’s design prioritizes both environmental compliance and driving efficiency. This engine will meet the LEV IV (Low Emission Vehicle) standards, approved by CARB, which call for reduced pollutants from vehicle exhausts. By optimizing the air-fuel mix, Mazda aims to create a powertrain that’s efficient and eco-conscious without sacrificing performance.
Mazda plans to extend the Skyactiv-Z technology beyond four-cylinder engines, eventually implementing it in its inline-six engine models. This future-proofing strategy indicates Mazda’s intention to maintain its internal combustion lineup even as the automotive industry transitions toward electric powertrains.
Rotary Engine Revival in Partnership with Toyota and Subaru
In addition to the Skyactiv-Z, Mazda is continuing development on a new rotary engine, a project it shares with automotive partners Toyota and Subaru. Earlier this year, Mazda confirmed its collaboration on next-generation engines with these companies, including a focus on rotary EV systems equipped with one or two rotors. Although Mazda has not provided a specific timeline for the rotary engine’s market release, company representatives have expressed optimism about the project’s progress.
A Balanced Approach to Innovation
Mazda’s Skyactiv-Z engine signals the company’s dual commitment to preserving the joy of internal combustion while embracing sustainability. With the goal of enhancing fuel efficiency and meeting global emission standards, the Skyactiv-Z engine will support Mazda’s internal combustion vehicles in the years ahead.
As Mazda moves forward with these developments, the automotive industry and Mazda enthusiasts alike eagerly anticipate further details on the Skyactiv-Z’s design and the promise of a cleaner, powerful engine that respects both driver expectations and environmental demands.
