How To Monitor Your Fuel Economy In Real Time On The Road
With gas hitting a national average of $4 a gallon, everyone’s been talking about how to improve fuel economy–myself included, be it for taking summer road trips or avoiding goofy (and expensive) gas-saving gadgets. But how do we know if the fuel economy we’re getting is accurate, whether we’re driving an unmodified car–or one equipped with a supposed miracle product? On the road, most drivers just read the trip odometer and divide by the amount of gas they purchase....