Wynn's SP22910 Supremium Diesel is a multi-functional fuel additive designed to improve the quality of diesel fuel. This 250ml bottle treats up to 250 liters of diesel fuel, making it suitable for all diesel engines, including common rail and pump injector systems. It helps to reduce fuel consumption, enhance engine performance, and protect the fuel system against corrosion and wear. The additive is compatible with all diesel fuels, including biodiesel up to B30, ensuring optimal combustion and lower emissions.