This product is supplied in a self-pressurized canister and is designed to replace your gasoline supply during the cleaning process by connecting directly to the low-pressure fuel rail. As such, the fuel pump will need to be idled while using the cleaner. The product is supplied with a threaded valve, so an adapter to tap into the fuel rail will be necessary. Adapters may be available locally at an auto parts store. Alternatively, you can contact Herb Polly of Eagle Industries at (440) 376-3885. Once connected to the vehicle, the can should be suspended upside-down and the vehicle should run at idle until the product has been completely consumed. This may take 20-30 minutes, depending on the engine.