There is no such thing as Mercon VI. Dextron VI is a GM product. "http://en.wikipedia.org/wiki/Automatic_transmission_fluid"
I can at least tell you the VI is the standard editor used on a lot of Unix platforms. However, it is so clunky that the joke is the name is an abbreviation for "Virtually Impossible". Vi has a...
The Roman numeral VI represents the number 6.
Presumably it stands for six.
5,909.52 kilometres (3,672.01 miles)