GREENSBORO, N.C. — Gas prices just crossed $3.50 a gallon in Greensboro, but federal energy experts say a few simple driving habits could help drivers spend significantly less at the pump.
The U.S. Department of Energy says aggressive driving like speeding, rapid acceleration and hard braking wastes a surprising amount of fuel. At highway speeds, that kind of driving can lower gas mileage by roughly 15% to 30%. In stop-and-go traffic, the impact can be even worse, cutting fuel economy by 10% to 40%.
That means smoother, calmer driving can keep more money in your wallet. One of the biggest factors affecting fuel economy is speed…