What does 'downshifting' help with while driving?

Downshifting is a driving technique used primarily when a driver needs to reduce speed while maintaining control of the vehicle, particularly on inclines or declines. When you downshift, you select a lower gear, which increases engine RPM and enhances engine braking. This process helps to maintain better control of the vehicle as it descends hills by leveraging the engine's power to slow the vehicle down without relying solely on the brake system. This not only helps to prevent brake overheating but also ensures smoother deceleration and better handling during steep descents.

While downshifting can potentially contribute to improved fuel efficiency in certain driving conditions, its primary function, especially when it comes to managing downhill driving, is to provide better control and power. Therefore, downshifting is especially advantageous in scenarios where maintaining control while descending is crucial for safe driving.