BG Fuel Injection System Cleaner (210E, 325ml) is a professional petrol fuel injection service fluid applied via BG VIA or FIS supply tools, connected directly to the vehicle's fuel injection system for on-vehicle deep cleaning. It removes deposits from fuel injectors and combustion chambers under live operating conditions, restoring precise fuel spray patterns and combustion efficiency without engine disassembly. Used as part of the BG petrol fuel injection service, 210E is the service fluid of choice where injector deposits are causing drivability issuesrough idle, hesitation, elevated emissions or poor fuel economy. The on-vehicle service delivers far higher concentrations of cleaning chemistry to the injectors than any pour-in fuel tank additive, with consistent and demonstrable results. See also BG Fuel Injection & Combustion Chamber Cleaner 201E. Contact PartsForMachines for guidance on which service fluid is most appropriate for your VIA or FIS tool configuration. For works