Drivers who are accustomed to manual transmission vehicles may feel uncomfortable when driving automatic transmission cars. Meanwhile, most people are not very familiar with how to operate an automatic transmission and even have some misconceptions. Below, we will correct a few incorrect ways of driving automatic transmission cars:
1. Coasting in N gear during high-speed driving or downhill. Some drivers believe that coasting in N gear during high-speed driving or downhill can save fuel. However, this is actually a very wrong and dangerous practice. When the car is moving, the output shaft speed of the automatic transmission is relatively high. If the engine enters idle state (when in N gear), the transmission may experience insufficient oil supply. Especially for multi-plate clutches, it's easy to be damaged due to lack of lubrication and cooling.
2. Staying in D gear for long periods while parked. When the car is stopped for a long time, the driver habitually only steps on the brake pedal while keeping the gear in D position. This operation is only suitable for short-term parking. For long-term parking, it’s best to shift into N gear (neutral) and engage the parking brake. When in D gear, although the car has stopped, the transmission is still in working condition. Staying in D gear for a long time can increase the temperature of the transmission oil, increasing wear on the automatic transmission.
3. Not shifting to P or N gear before turning off the engine. Drivers often encounter situations where the car won't start, which is usually because the gear was not shifted to P or N before turning off the engine last time. Drivers are reminded that in order to ensure smooth restarts and protect the normal operation of the engine and transmission, they should shift to P or N gear before turning off the engine.
4. Intentionally pressing the gas pedal hard to upshift. During normal driving, the gear-shifting mode for automatic transmission vehicles should be pressing the gas to downshift and releasing the gas to upshift. Deliberately pressing the gas pedal hard during acceleration will make the automatic transmission computer think that the driver wants to accelerate and overtake. At this point, the automatic transmission will not only fail to upshift but will also intentionally downshift to provide greater torque output for the car. Additionally, it is not recommended for drivers to use deep-throttle operations, as the automatic transmission will forcibly downshift to a low gear under such circumstances, potentially damaging the automatic transmission.
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