Stanadyne Fuel Additives protect and improve the performance of all fuel injection systems including: • High Pressure Common Rail • Unit Injectors • Rotary Distribution Pumps • In-line Pumps • Multi-Port Injection • Gasoline Direct Injection • Carburetors Stanadyne Fuel Additives comply with federal low sulfur content requirements for use in diesel motor vehicles and non-road engines. All Stanadyne Fuel Additive formulas meet corresponding diesel or gasoline fuel system requirements and will not harm exhaust aftertreatment systems such as Diesel Particulate Filters (DPF) or Selective Catalytic Reduction (SCR) systems.