Prestone® Diesel Fuel Conditioner cleans and prevents moisture and deposit formation while providing lubrication to the fuel system for overall corrosion and wear protection. Regular use offers improved fuel economy, resulting in increased power and mileage while reducing harmful emissions. This product is sulphur free and suitable for use with all diesel fuel types, including bio-blends and ultra low sulphur (ULSD) grade.

Note: It will not void vehicle manufacturer’s warranty.