What is the purpose of engine braking?

Engine braking involves downshifting to lower gears, which helps slow the vehicle when driving downhill. This method makes use of the engine's resistance to control the vehicle's speed without relying solely on the traditional brake system. By engaging lower gears, the engine works against the motion of the vehicle, reducing speed and aiding in control, especially on steep grades.

This technique not only helps maintain a safer speed but also prevents the brakes from overheating, which can occur with continuous use. While options relating to accelerating rapidly, reducing wear on brake pads, and preventing overheating are relevant to driving mechanics, they do not directly align with the specific purpose of engine braking, which focuses primarily on vehicle speed management while descending slopes.