What Speed to Downshift to Which Gear?
2 Answers
1st gear: Below 20 mph (15-18 mph shift to 2nd gear); 2nd gear: Below 30 mph (25-28 mph shift to 3rd gear); 3rd gear: Below 30 mph (35-38 mph shift to 4th gear); 4th gear: Below 50 mph (around 48 mph shift to 5th gear); 5th gear: Above 50 mph. Manual transmission shifting techniques: Remember the principle "accelerate before upshifting, decelerate before downshifting". Before upshifting, press the accelerator to increase speed first; before downshifting, release the accelerator to reduce speed first. Always fully depress the clutch pedal before shifting. Gear lever operation should be light, quick, smooth and precise. Shifting timing: Upshift at 2000-3000 RPM. If continued acceleration is needed after upshifting. Downshift when RPM drops to 1500-1000.
I've been driving manual transmission for decades, and the speed for downshifting isn't fixed. Generally, I shift to 2nd gear around 30 km/h, downshift to 3rd at 50 km/h, and to 4th or 5th above 70 km/h. But the most crucial thing is listening to the engine sound. If the RPM is too low, the car will shudder; if it's too high, it'll buzz and waste fuel. From my experience, keeping the tachometer between 2000 to 2500 RPM when downshifting makes it the smoothest. You also need to consider the car's weight and road conditions—delay downshifting uphill to maintain power. There's a slight difference between new and old cars too; practice a few times to get the feel, or it'll be jerky and uncomfortable. Safety first—don't just stare at the dashboard, pay attention to the car's vibrations. Remember to downshift steadily each time, and don't stomp on the accelerator.