What has happened to colour coding? New V-Power PETROL with BLACK flexible pipe and nozzle? My last visit to a Shell petrol station in Warrington Road, Rainhill, Merseyside was a rather infuriating and extremely costly experience (£236.00), which I would like to bring to your attention, as I feel it may have been repeated a great many times by other unfortunate motorists using Shell fuel stations. I visited my local Shell station to fill up with diesel on Sunday 7th March 2010, only to discover minutes later to my cost that I had inadvertently put several litres of unleaded petrol into my car’s tank. On inspection later of the exact same pump dispenser I’d used earlier, I saw that both the nozzle and the trigger were coloured black and not green as would indicate petrol. Had the colour codes been applied correctly I would certainly not have made this simple but costly error. I regard it as wholly misleading, deceptive and irresponsible that in a bid to promote a new variant of fuel Shell chose to abandon common sense and set up what is in effect a trap, whereby unsuspecting customers run a much higher risk of ruining their cars by merely adhering to the colour codes of petrol dispensers.