To know your gas savings when comparing cars, GPM can be subtracted. MPG cannot.
If you are buying a car, use these calculators to see the gas and cost savings of different vehicles:
GPM Calculator
Climate Central

Wednesday, February 4, 2009

NSF and Truck Trend Magazine

The National Science Foundation discusses the MPG Illusion in a report called "Math: What's the Problem?" and Truck Trend magazine discusses it in an article on fuel efficient trucks.