Hot Gasoline: Less Bang Per Buck

Back in the early 20th century, US regulators decreed that the official definition of a gallon of gasoline was 231 cubic inches at 60 degrees Fahrenheit. All well and good, but the problem is that gasoline expands somewhat as temperature increases, meaning that you're actually getting less energy per dollar when you… » 6/20/07 5:30pm 6/20/07 5:30pm