Which driving technique helps in managing vehicle momentum on downhill slopes?

Engine braking is an essential technique for managing vehicle momentum on downhill slopes. When descending a hill, simply relying on the brakes can lead to overheating and potential brake failure. Engine braking involves downshifting to a lower gear, which allows the engine to help slow the vehicle by providing resistance against the momentum. This technique not only helps in controlling speed more effectively but also enhances vehicle stability, reducing the risk of skidding or losing control.

In contrast, relying on acceleration would increase speed, which is unsafe on a downhill slope. Coasting, which involves allowing the vehicle to roll without applying power or brakes, may seem like a way to save fuel but can lead to a lack of control and preparedness for sudden stops. Drifting, although a technique used in specific driving situations like racing, is not suitable for managing the momentum of a vehicle on downhill slopes, as it can cause loss of control.