Afton Chemical launches the HiTEC ® 65522 series of gasoline performance additives approved for TOP TIER+™ gasoline

28 August 2025

Afton Chemical Corporation, a global leader in gasoline performance additives (GPA), proudly announces the launch of its HiTEC® 65522 GPA Series, now approved for use in TOP TIER+™ gasoline. This innovative additive series is designed to meet the evolving demands of modern engine technology, specifically gasoline direct injection (GDI) engines, which are now used in 74% of all new vehicles in North America, according to the U.S. Environmental Protection Agency's (EPA) latest Automotive Trends Report.

Twenty years ago, a group of original equipment manufacturers (OEMs) adopted the voluntary TOP TIER™ standard to improve fuel cleanliness and optimize engine performance. Recognizing advances in engine technology and the need for updated standards, these OEMs have adopted the revised TOP TIER+™ standard. This new standard includes additional requirements to prevent potential deposit problems in GDI engines and ensure cleaner, more efficient fuel options.

The new TOP TIER+™ standard, Revision G, released in early January, includes two new test methods using a GM LHU engine. The first test evaluates injector deposit control by measuring injector fouling and particulate buildup. Injector contamination can lead to poor spray patterns, compromised fuel delivery, increased fuel consumption, and elevated particulate emissions. The second test focuses on protecting against stochastic pre-ignition (SPI), a harmful pre-ignition event that can occur in modern downsized engines and potentially lead to engine failure. For more information on TOP TIER+™, visit www.toptiergas.com .

Anticipating these changes, Afton Chemical has developed the HiTEC® 65522 GPA Series, our most effective chemistry yet. They are specifically formulated to provide excellent intake valve deposit control while providing superior deposit control for direct-injection engine technology. These additives ensure optimal engine performance and longevity and meet the stringent requirements of the new TOP TIER+™ standard.

"We are very excited to launch the HiTEC® 65522 GPA Series," said Gerardo Alvarez, Marketing Director for North and South America at Afton Chemical. "Our team has worked diligently to develop an additive that not only meets but exceeds the new TOP TIER+™ requirements. This launch underscores our commitment to innovative solutions that support the latest advances in engine technology."

Afton Chemical is ready to support fuel distributors with the HiTEC® 65522 GPA Series. Click here to learn more about how the new TOP TIER™ Program's TOP TIER+™ standard improves fuel quality for gasoline direct injection (GDI) engines by combating injector deposits and stochastic pre-ignition (SPI), providing cleaner, more efficient fuel options.

HiTEC® and Passion for Solutions® are registered trademarks of Afton Chemical Corporation. TOP TIER ™ is a trademark owned by a TOP TIER sponsor.

About Afton Chemical

Afton Chemical Corporation, part of the NewMarket Corporation (NYSE: NEU), has been serving the fuel and lubricant additive market for over 100 years. Our technology solutions include additives for powertrain, engine oils, heavy-duty and refined fuels, and industrial applications. We leverage our formulation, engineering, and marketing expertise to help our customers develop and market fuels and lubricants that reduce emissions, improve fuel economy, extend equipment life, improve operator satisfaction, and lower the total cost of operating vehicles and equipment. We focus on advancing our technology, meeting specifications, and executing our Passion for Solutions® philosophy to provide our customers with the differentiation they need to stand out. We support our global operations with regional headquarters in Asia Pacific, EMEAI, Latin America, and North America. Afton Chemical Corporation is headquartered in Richmond, Virginia, USA. For more information, visit www.aftonchemical.com .

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Contacts
For further information, please contact:
Tim Brennan
Senior Marketing Manager, Fuels
Afton Chemical Corporation
[email protected]

 

Source: businesswire.com