That is my biggest fear,as i am owning a FR TDI in a country where diesel cars represents only 2%!!!!(my fr is the only tdi at the moment in greece),so imagine that at fuel stations they dont even think about the chance you go there with a diesel car.So,all the time i first go out of the car,then i say diesel at least three times and then unlock!!!hehehe,i am trying to fill up from particular station and that way the get to know the car