Any one with a bit more knowledge about this? To explain, I called in at the Asda filling station after doing a bit of shopping last night, as I had about 2 gallons, (roughly ten litres) of diesel left in the tank, so proceeded to put £20-00 of fuel in. I was convinced I had used the diesel pump. After paying for it, drove home. This morning after turning the key, the engine was difficult to start and ran rather lumpy, but got it to work. I then opened the filler and had a sniff, oh sugar, the smell of petrol. I managed to limp it to another filling station this evening and filled the tank full with about 21 litres of the correct stuff, diesel. Do you think I could be OK and not suffer any engine damage, having diluted the petrol? Bearing in mind the petrol at it's current price, would be about or just over 15 litres for the £20 I paid. A check of the manual and the stated capacity of the fuel tank is 50 litres (Peugeot 205) so I guess I had a little more in the tank than I thought, before putting the petrol in it.