I've been gone for a week, and I came home to the news that my nephew drove our car to Las Vegas from Los Angeles at 85 miles per hour pretty much the whole way. I think his driving represented a little more than a third of the tank.

I've got to double check the numbers, but even with more than a third of the tank wasted on none hypermiling driving, it still looks like the tank averaged 38 mpg. All of the driving prior to his bat-out-of-hell adventure was city driving.

We are actually going to scratch the numbers on that tank and only evaluate a tank we drive entirely ourselves, but I thought for anecdotal interest I'd put this up.