989 Diesel Fuel Supplement can be used in all types of diesel fuel, including low-sulfur, ultra low-sulfur and biodiesel.

  • Cleans pumps and injectors
  • Increases cetane number
  • Improves the combustion
  • Reduces black exhaust smoke
  • Protects the fuel system against rust and corrosion
  • Improves lubrication of the pump
  • Absorbs water in fuel system