What is the corresponding speed for third gear?

[VanMaria]

Third gear corresponds to a speed of 20-40km/h Gear to speed correspondence: First gear is the starting speed, usually between 0-5km/h. Second gear corresponds to 5-20km/h. Third gear corresponds to 20-40km/h. Fourth gear corresponds to 40-60km/h. Fifth gear corresponds to 60-100km/h. Shift RPM: For most cars, the optimal shift point is when the engine reaches 2000r/min, preferably not exceeding 2500r/min. For some high-displacement, high-power engines where the maximum efficiency range tends to be delayed, shifting around 3000r/min may be considered.

[SanRachel]

After driving for so many years, I've found that the speed for third gear isn't fixed—it really depends on what car you're driving. For regular family sedans, like my 1.6L manual, third gear is usually most comfortable between 30 to 60 km/h. After starting, shifting to third gear typically happens around 25 km/h, and on flat roads, you'd smoothly accelerate to around 50 km/h before shifting to fourth. But with an SUV or a turbocharged car, you might even push third gear up to 70 km/h. The key is watching the tachometer—most cars are most fuel-efficient in third gear between 2000 to 3000 RPM, which usually corresponds to about 40 to 50 km/h. However, when climbing hills, you'll need to lower your speed in third gear, whereas downhill you can push it higher. So, you can't rigidly determine speed just by the gear.

[Beatrix]

Actually, the speed range for third gear is quite flexible, and I always have to adjust based on the specific situation when driving. I use third gear the most in the city, typically keeping the speed between 30 to 50 km/h, occasionally pushing it past 60 km/h when overtaking by flooring the accelerator. However, third gear is rarely used on highways, where fourth gear or higher is more appropriate. For manual transmission cars, remember that the RPM is a more accurate indicator than speed for shifting into third gear: shifting around 2000 RPM is the smoothest, corresponding to a speed just over 30 km/h; dragging it to 2500 RPM can get you close to 40 km/h. Although automatic transmission cars don’t require manual shifting, their gearbox logic is similar. In short, third gear isn’t a fixed value—it’s all about adapting to road conditions and the specific car model.

[EllieLynn]

The speed range for third gear varies greatly depending on the car. When driving a small-displacement vehicle, the engine roars noticeably if you exceed 40 km/h in third gear; but in my friend's high-performance car, third gear remains stable even at 70 km/h. Generally, third gear is most commonly used between 30-60 km/h - especially useful for overtaking or cornering on city roads. Just remember not to let speed drop below 20 km/h in third gear, or the engine will shake like it's coughing, damaging the car and wasting fuel. During the break-in period for new cars, precise control is crucial: don't exceed 40 km/h in third gear when starting a cold engine, and only increase to around 50+ km/h after reaching normal operating temperature. Simply put - trust your speedometer more than memorizing specific numbers.