Lubegard 72400 PRO II 9000 Complete Fuel System Cleaner, (2 Can Kit) Cleans and removes intake valve deposits (IVD), fuel injector deposits (PFI) and combustion chamber and oxygen sensor deposits Cleans and keeps air-intake system throttle plate clean, Ensures smooth and dependable operation and Helps prevent further carbon deposit formation Helps eliminate hesitation, rough idle, stumble, surge, stall, and backfire Provides superior anti-rust and corrosion protection, Removes throttle plate carbon up to 100-percent and Helps ensure proper air flow Polymeric fluidizers and dispersants/detergents create synergistic cleansing that washes away and removes carbon deposits, Lowers exhaust emissions and maximizes fuel economy and Eliminates hydrostatic engine lock