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What is the difference between D3 gear and D gear?

1 Answers

ChloeAnn

07/29/25 9:48pm

The difference between D3 gear and D gear lies in their functions: D gear is the forward drive gear, which can upshift based on vehicle speed and engine RPM; D3 gear is a lock-up gear, meaning that once the transmission shifts up to 3rd gear, the vehicle will not upshift further. D3 gear is generally used for climbing hills, as hill roads often have slopes. It sacrifices some speed to increase torque by locking the transmission in 3rd gear, thus maintaining a balance between speed and torque. The number of gears typically refers to the count of forward gears in a geared stepped transmission. The more gears a vehicle has, the better it adapts to different driving conditions, which can help reduce fuel consumption.

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