
Introduction
BASF is set to launch its Keropur Gasoline Performance Additive Series, designed to meet the U.S. TOP TIER+™ detergent gasoline standard and EPA's Lowest Additive Concentration (LAC) requirements. The product is also expected to gain approval from the California Air Resources Board (CARB).
Product Details
The new Keropur AP 225-20 formulation will be available well before the January 2027 deadline, allowing customers ample time for a smooth transition. The additive is engineered to protect engines, improve fuel economy, and support cleaner combustion across all injection systems.
Compliance and Testing
The TOP TIER+™ standard, introduced by leading OEMs, includes rigorous testing protocols for injector deposit control and protection against stochastic pre-ignition (SPI). Keropur AP 225-20 has successfully passed all required tests and is undergoing final optimization. It is formulated with EPA-registered components and features a streamlined composition.
Implementation Timeline
BASF plans to notify customers of the final product specifications in Q4 2025 and will support the development of terminal transition plans. Deliveries are scheduled to commence in the first half of 2026. The company is also investing in infrastructure upgrades at its manufacturing sites to support the new additive series.