The TOP TIER™ Approved Fuels program announces the development of new gasoline and diesel fuel performance standards designed to help consumers’ vehicle engines and emissions systems operate cleanly and optimally. Sponsored by General Motors, BMW, Toyota, Honda, Audi, Daimler Truck, Ford, Mercedes-Benz, Navistar, Stellantis, Subaru of America, and Volkswagen, TOP TIER™ Approved Gasoline and Diesel have become synonymous with exceptional fuel detergency and engine care.
What to Expect
Fuel marketers can anticipate accessing these new standards on toptiergas.com by early January, with consumer availability of TOP TIER+ Approved Fuels later in 2025. The new standards affirm the commitment of TOP TIER™ Approved Fuels to delivering superior fuel performance and engine care.
New Gasoline Performance Standards
The current TOP TIER™ Detergent Gasoline Deposit Control Performance Standard is recognized for defining market-leading port fuel injected (PFI) engine intake valve and combustion chamber deposit cleanliness requirements.
Introducing the TOP TIER+™ Approved Gasoline Performance Standard will extend these benefits to newer, higher-efficiency gasoline direct-injected (GDI) engines. The new gasoline standard will include a GDI Fuel Injector Cleanliness Engine Dynamometer Test while monitoring for optimal emissions and combustion behavior.
Updated Diesel Performance Standards
Today’s TOP TIER™ Diesel Fuel Performance Standard has been streamlined into two levels of performance requirements for greater market flexibility:
- TOP TIER™ Approved Diesel Performance Standard has been revised to focus on detergency and contamination cleanliness requirements.
- TOP TIER+™ Approved Diesel Performance Standard adds enhanced fuel injection hardware wear protection and greater fuel storage stability to the base-level features.
Confidence for Consumers
“Our primary goal is to keep consumers and the optimal performance of their vehicle investment at the forefront when setting the program’s fuel performance standards,” explained Veronica Reilly, M.S., TOP TIER™ Program Manager, Senior Engineer, GEFL
General Motors. “This data-driven, high-quality fuel detergency program is sponsored by leading global automotive manufacturers, providing consumers with the confidence they need in their fuel selection.”
For additional information, visit www.toptiergas.com or contact Jim Kosmerick, Marketing Manager, TOPTIER@CenterForQA.com.
