In mid-July, the Energy Information Administration reported that gasoline demand was at its lowest since June of 2004. The combination of a soft economy and better fuel efficiency is contributing to a lower demand. This lower demand is causing, and being compounded by, rising gasoline prices. Drop in gasoline demand Over 2008, the demand for Read on! →

It seems relatively simple: your car needs fuel, so you add gas, E-85, diesel or biodiesel. There is a huge amount of debate, though, over exactly how full to fill your tank. Should you increase your gas mileage by filling it halfway? Or should you top it off, extending how long you can go between Read on! →