505 CRF Fuel System Treatment, 16 fluid ounces

Treats Gasoline or Diesel Engines. It is recommended to use both CRF Fuel Service Treatment & CRO Oil System Treatment in unison with every other oil change for the best results. Proven special formula that helps Remove carbon deposites for Injectors, Induction Ports, Induction Valves, and Combustion Chambers. Easy to use! Just pour in your fuel tank! Treats 5 to 20 Gallons.