Error Proofing the Gas Cap
I recently spent some time in the United Kingdom. It was my first time traveling to Europe. During my stay I had a rental car. The first time I went to fill the car with diesel fuel I found a great error proofing method for making sure you put the gas cap back on after fueling up.
See the pictures below.
The key has to be used to unlock the gas cap. When you pull out the gas cap the key is locked into it and cannot be removed. It will not turn or unlock unless it is in the gas tank. Try sticking your key in the ignition with the gas cap on it!
In the U.S. we have the gas cap tethered to the car so we don’t forget to take it but it does not mean that it will be on the gas tank when the car pulls away.
I love the simplicity of this! I had to share this.