The amount of gas spent idling is quite low. A compact sedan uses around 0.16 gallons per hour. Intuitively, this makes sense. The work required to accelerate a

The amount of gas spent idling is quite low. A compact sedan uses around 0.16 gallons per hour. Intuitively, this makes sense. The work required to accelerate a car is much higher than the work required to move the engine through its cycles.