EGR Systems can become clogged with carbon deposits that affect fuel economy and performance of a diesel vehicle. The DieselPro EGR Cleaning Tool applies the powerful DieselPro EGR System Cleaner into the circuit. For most applications the exhaust side of the EGR is serviced, then the intake side. This cleaner rapidly dissolves the deposits, eliminating the issues commonly associatedwith plugged EGRs. By adding our DieselPro Fuel Injector Cleaner, you clean the pump and injectors completing the full diesel fuel service.