Cruise control is a system that automatically controls the speed of a motor vehicle. It is typically used on highways and other roads where the speed limit is relatively constant. There is some debate about whether cruise control uses more or less gas than manually controlling the speed of the vehicle.
One of the main benefits of cruise control is that it can help to improve fuel economy. This is because cruise control can maintain a constant speed, which is more efficient than constantly speeding up and slowing down. Additionally, cruise control can help to reduce driver fatigue, which can also lead to improved fuel economy.