What do I do if I put diesel into my petrol car, or petrol in a diesel engine?

With a recent mixup seeing diesel being erroneously placed into a petrol tank, the AA has advice on what to do if you've misfuelled

Whether you've put petrol in a diesel car or vice versa, it's crucial not to turn on the ignition

Following the inadvertent delivery of a tank of diesel into underground storage intended for petrol at a Circle K station in Kildare, and warnings of up to 87 motorists being affected by the issue, the question of misfuelling cars has hit the news.

Stopping to fuel up in the middle of a long-haul journey is convenient, but it happens the odd time — whether distracted by rowdy passengers, or tired out by circumstances, you might pick out the wrong fuel pump and load your car up with a tank of the wrong stuff.