BG Diesel Fuel System Performance Restoration cleans the entire fuel system, including the removal of internal diesel injector deposits com-monly found in High Pressure Common Rail fuel systems. When used as part of an oil change, it will keep injectors and combustion chambers clean, thus restoring horsepower, torque, and fuel efficiency. This tank treat product cleans the entire fuel system, including the removal of internal diesel injector deposits commonly found in High Pressure Common Rail fuel systems.