At some point everyone who owns a Diesel motor vehicle will put petrol into it by mistake or will accidently pour add blue into the fuel tank instead of the add blue tank.
As soon as you realise this has happened. Stop driving the vehcile and shut it down. If you havent started the vehicle yet, dont. Call a tow truck and get it to a mechanic ASAP.
Diesel fuel has lubricating properties that petrol down not have. You diesel will run on petrol for a short amount of time but it will not be lubricating the fuel system the way that the diesel fuel does. Running the petrol in the diesel for two long can and will caused major mechanical failures in diesel engines.
