Usually I care about how far I can go in my car before I need to refuel. This is exactly what MPG tells me. The only time the inverse is useful is when buying

Usually I care about how far I can go in my car before I need to refuel. This is exactly what MPG tells me. The only time the inverse is useful is when buying cars on the basis of fuel efficiency. That's a much rare occasion since I drive every day but only buy cars every ~5 years.