unchartered oil

Imagine a contraption where the outer side of it looks like the outside of the gasoline cap that screws into the car, and the reverse side of it looks like a computer. It screws into the car only once, permanently. When you pull up to a gas tank, you press a button near the radio, and the gas cap automatically slides open and a contraption comes out to affix to another such contraption easily standardized to work with regular gas pumps for such cars. this invention is undoubtedly coming, since it sucks to fill up the gas in the cold, but it may take us slow humans some time.