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Thank you both for your quick replies ...certainly put my mind at rest. I thought i was going to start having problems driving my car around by putting 'wrong' diesel in. I did say to my friend that it unusual the till operator at the garage didn't say anything to me when i'd fuelled up at that pump, obviously because it's the same, i realise that now. ps to PanicButton, the diesel did come out quite quickly from that pump, filled my car lot quicker, obviously due to the higher pressure. Thanks again, i can drive around with peace of mind.