Miles per gallon—mpg—is the default measure of gas mileage in the United States, but it may not be the best one, argues "Engineering Explained" host Jason Fenske. Here's why he'd rather see a different unit of measurement for fuel economy.
Fenske doesn't have a problem with the individual units—the mile and the gallon—but says something "weird" happens when you put them together. He explains that with a question: Is it better to double the fuel economy of nine cars from 50 mpg to 100 mpg, or double the fuel economy of just one car from 5 mpg to 10 mpg?
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