Which gear should be used when going downhill for a long distance
3 Answers
When going downhill for a long distance, the car should be shifted into a low gear. Here is a detailed introduction: When going downhill for a long distance, shift into a low gear. Avoid continuously pressing the brake pedal during a long descent; instead, rely on the low gear and engine speed to slow down the vehicle (engine braking). Due to gravity, the car will naturally accelerate during a long descent. Normally, a few taps on the brakes are sufficient for acceleration, but during a long descent, prolonged braking can cause the brake pads to overheat from friction. Once the brake pads reach a certain temperature, brake failure may occur. Therefore, avoid prolonged braking during a long descent and instead use engine braking to control the speed. Shift into a low gear when going downhill for a long distance to drive safely.
As a seasoned driver with over a decade of experience, I've made it a habit to downshift to lower gears like 1st or 2nd when descending long slopes in a manual transmission car. This allows the engine to assist in braking and prevents overheating and failure of the brakes. I remember once on a long mountain drive, I carelessly used higher gears without noticing the steepness, which caused the brake pedal to go soft and nearly lose control. It scared me so much that I immediately pulled over to check. Since then, I always downshift, especially during rain, snow, or when carrying heavy loads. During regular maintenance, I also check the brake fluid and pad wear since engine braking can extend their lifespan and save fuel. In short, downshifting isn't just for safety—it reduces accident risks, and making it a habit significantly enhances safety.
As a new driver who just got my license, my driving instructor emphasized the importance of using low gears on long descents—like using lower gears instead of coasting in neutral for manual transmissions, or switching to L or S mode for automatics. This is because prolonged braking can cause the brakes to overheat, fail, or even catch fire. Once, during a road trip with friends, I saw another driver experience brake failure from not using a low gear—luckily, no one was hurt. Now, I always downshift first to let the engine slow the car naturally, protecting both the vehicle and myself. Simply put, avoid high gears on descents and rely more on engine braking to control speed. This lesson from driving school is genuinely practical, especially on highway exits or steep slopes. Developing good habits can prevent trouble.
