How do you drain petrol out of a diesel Peugeot 206?

To drain petrol from a diesel Peugeot 206, you should first ensure the vehicle is parked safely and on level ground. Disconnect the fuel line from the fuel filter or the fuel tank, using a siphon pump or a hand pump to remove the petrol. Make sure to capture the petrol in a suitable container for safe disposal. After draining, refill the tank with diesel and prime the fuel system before starting the engine.