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What is the difference between high gear and low gear?

2 Answers

SanRemington

07/29/25 6:08am

The difference between high gear and low gear lies in their different purposes: low gear has slow speed but high torque, so it is usually used for climbing slopes or hauling heavy loads; high gear has low torque but high speed, so it is used for driving at high speeds. The gear of a car, which is the transmission, refers to the car device used to change the size of gears. Car gears are divided into automatic transmission gears and manual transmission gears. Automatic transmission gears include P, R, N, D, 2, 1 or L, etc. The P gear is used for parking, using a mechanical device to lock the rotating part of the car so that the car cannot move. Manual transmission gears include 1st gear, 2nd gear, 3rd gear, 4th gear, 5th gear, and R gear, where 1st to 5th gears are forward gears, and R is the reverse gear.

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Jeremy

08/12/25 9:37am

I've been driving manual transmission cars for twenty years, and there's a significant difference between low and high gears in actual driving. Low gears like first or second mainly provide high torque to the car, making it powerful when starting, climbing hills, or pulling heavy loads, but they are slower and consume more fuel. High gears like fifth gear can lower the engine speed on highways, ensuring a smooth and fuel-efficient ride. The key is not to shift gears at inappropriate times. For example, using a low gear when going down steep slopes can provide engine braking for safety and prevent brake overheating. On smooth roads, shifting up more often protects the engine and saves on maintenance costs. Remember, during the break-in period of a new car, avoid prolonged use of low gears to prevent excessive wear on parts.

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