To find a near Gasoline Station

When the Gas is used out, I should drive my car to a Gasoline Station to fill up the car tank. There are two Gasoline Stations nearly my office, which are 15 minutes away by car. I think It is waste time to fill up the gas nearly one hour a time. So one day , my car gas was used up again,I opened my smartphone GPS to try to find the nearest one . And fortunately I found one which was showed only five minutes. I was surprised that I haven't seen this station before since I have driven to that road many times. So I happily drove  my car to that place . However the place is very near, it was not easy to find it. When the GPS saying:" you are already near your destination". But I surrounded the place several times,I still can't find it. I nearly had doubt that  I made something wrong or GPS was wrong. After 30 minutes later, I still couldn't find the station. Finally, I decided to go another station where I often go. At my last glimpse the place, suddenly,I saw a gas pipe in a low flat house through its window. and an old and dim notice showed: Diesel Oil only  .