A couple of weeks ago I went to fill up my diesel car (fuel warning light had been on a while so low on fuel), and for some reason started filling with super unleaded! I had only put in about 90 pence worth when I realised so not a lot.
Not being one to worry too much about anything I then topped up with about £40 worth of diesel in the hope it would all get mixed up and be fine.
And the car was fine and has been since. But someone has mentioned to me it could still be an issue, potentially affecting parts in the engine, or if the unleaded doesn't mix and sits at the top, or bottom of the tank.
Is the small amount of petrol anything to worry about?