I am considering purchasing a diesel car due to better MPG. One thing that puts me off is after only ever driving petrol cars since passing my test I am concerned that it could all be too easily to accidentally fill it with petrol by mistake. Any mistake like this would wipe anyway savings on fuel costs, only has to happen once. Do you have any tips or tricks you use to minimize this risk?
Surely they could of invented some kind of device/mechanism that would only allow a diesel pump nozzle to fit into a diesel tank?