What is the speed for 3rd gear?
2 Answers
The corresponding speed for 3rd gear is 20-40km/h, which is commonly used for urban driving. 1st gear is for starting, with speeds typically between 0-5km/h; 2nd gear corresponds to 5-20km/h; 4th gear corresponds to 40-60km/h; and 5th gear corresponds to 60-100km/h. Generally, the optimal shift timing for most cars is when the engine reaches 2000r/min, preferably not exceeding 2500r/min. For high-displacement, high-power engines, the maximum efficiency range is often delayed, so shifting around 3000r/min may be considered. Different vehicles perform differently in terms of engine and transmission, and drivers can determine the shift timing by listening to the engine sound. A dull engine sound usually indicates it's time to upshift. Driving at a gear too low increases engine pressure, fuel consumption, and negatively impacts both the engine and transmission. Conversely, when the engine speed drops below around 1500r/min, it's time to downshift. Upshift Timing: When the engine has ample power, it emits a dull humming sound. After upshifting, if there's no power shortage or drivetrain vibration, and the vehicle accelerates smoothly and naturally, it indicates the upshift timing is correct. Downshift Timing: When the vehicle's speed and engine RPM continuously decrease, and the car feels sluggish with engine compartment vibration, it's time to downshift one gear. Downshifting too early causes noticeable jerking, wasting power and increasing fuel consumption while harming the engine and transmission. Downshifting too late results in continued power shortage even after the shift, leading to persistent jerking. Misjudging shift timing causes such irreversible consequences, negatively affecting the driving experience. Manual Transmission Shifting: Generally, to engage 1st gear, move the lever left and then forward; for 2nd gear, left and then down; for 3rd gear, straight up from neutral; for 4th gear, straight down from neutral; and for 5th gear, right and then up (specific positions should be referenced according to your vehicle's gear markings). Manual Transmission Shifting Techniques: While shifting, coordinate the clutch and throttle properly. Press the clutch pedal fully, then release the throttle pedal, and quickly shift to the desired gear. Release your hand immediately after shifting—do not keep it on the gear lever (commonly known as the gear stick) for long, as this can damage it. For manual transmission cars, remember the principle: "accelerate before upshifting, decelerate before downshifting." Before upshifting, rev the throttle to increase speed; before downshifting, ease off the throttle to reduce speed. Always press the clutch pedal fully before shifting, and operate the gear lever gently, swiftly, smoothly, and accurately.
Oh, that's a great question! As a frequent driver, there's no strict rule for 3rd gear speed—it really depends on how you press the accelerator and the type of vehicle. For example, in my compact car, cruising in the city with 3rd gear feels most comfortable between 30 to 50 km/h, as long as the tachometer stays around 2000 RPM—not too low or high—for smooth driving. But if you're driving a larger SUV, the range might shift higher to 40-60 km/h due to differences in torque output. I've also seen new drivers stuck in 3rd gear with lugging, which causes the car to shake and increases fuel consumption, so I always remind them to avoid aggressive acceleration and maintain safe RPM control. Additionally, remember that vehicle weight and road conditions affect speed, like uphill driving or carrying cargo, which may slightly reduce speed. In short, experiment a few times to get a feel for your car, and you'll know the optimal speed.
