Mike UK: Alberta, Canada used to use the Imperial measuring system, but since they went metric they now use the U.S. gallon! Such confusion when I go there. Took me awhile to discover that the fluid ounces of the Imperial system and U.S. standard are not equal. Then there's miles per liter instead of miles per gallon.

I believe the metric system has been the standard of the United States since the 1880's, yes 1880's. Amazing how fast it's been adopted by us regular people. The metric system is no better than what we have now and has a lot of drawbacks, why change?