Comments kwaldman has made
Slower = Saving
No surprise - this is physics 101. Friction increases with the square of speed. At fairly low speeds, 30 MPH according to wikipedia, friction due to air resistance starts to dominate the equation.
http://en.wikipedia.org/wiki/Fuel_economy_in_automobiles
Driving the speed limit definitely saves money.On Easing off the gas eases gas use posted 1 year, 7 months ago 29 Responses