Can an automatic shift coast in neutral

Automatic transmissions cannot coast in neutral. Coasting in neutral will make the gearbox less lubricated.

1.The neutral gear of the automatic transmission car is also the N gear, so that when the gear lever is in the N gear, the power input terminal and the power output terminal inside the automatic transmission will essentially be mechanically separated.

2.If the automatic transmission car continues to coast in N gear, the first thing to do is to reduce the lubrication effect of the transmission.

Automatic transmission carsNo, you can'tCoast in neutralTarget.

Automatic transmission.

The lubricating oil is needed to be supplied by the engine, and the output oil pressure of the engine idle speed will be relatively low, and at this time, the automatic transmission is dragged by the wheel operation and has been running the linkage, the oil pressure is low, the lubricating oil is less, and it is easy to cause the hydraulic reversing valve and planetary gear in the automatic transmission.

and other parts are poorly lubricated and seriously worn, and a large amount of heat is generated at the same time;

Excessive heat will cause the oil to carbonize, form sludge, block the complex oil passage, and lead to insufficient oil quantity and poor lubrication after normal oil supply. Therefore, the habit of coasting in neutral gear must not be used on automatic transmission models.

The function of the automatic transmission N gear:

1. Trailer. When the vehicle needs to be repaired or temporarily towed for other reasons, it is necessary to shift the gear.

It can only be carried out when it is hung in n gear.

2. Temporary parking.

The vehicle needs to be parked temporarily, and when it does not take a long time, it can be parked in N gear. However, if the waiting time is too long, it is recommended to turn off the ignition.

3. Wait for the red light.

If you just encounter a red light and need to wait for a while, you can choose to hang the red light such as N gear, because at this time, it will not accelerate the wear and tear of the gearbox while reducing the fuel consumption of the car, which is a very good way.

It is possible to coast in neutral gear, but it is not recommended to coast in neutral because it will consume a little more fuel and have a large safety hazard. Never do this as satisfied.

Automatic cars are not allowed to coast in neutral gearThe lubricating oil of the automatic transmission needs to be supplied by the engine, and the oil pressure output when the engine is idle will be relatively low, and at this time, the automatic transmission is dragged by the wheels and has been running and linked.

Automatic transmission driving requires attention.

Automatic transmissions cannot coast in neutral gear. Because the car is coasting in neutral gear, the engine and the drive wheels will lose contact, and the car will rely on its own inertia to move forward. Then, in the event of an emergency that requires braking, the full braking force can only be provided by the brakes.

When coasting in gear, the engine itself will provide a certain amount of pulling, and with the braking, the braking distance of the car will be shortened. Moreover, the neutral coasting car is easy to stall, resulting in the failure of the brake booster drum and the decline of braking performance.

Precautions for automatic transmission cars.

Waiting for a red light for a short time can be applied to the brake in D gear, and parking for a long time can be in N gear to pull the handbrake, but it is forbidden to wait for the red light to hang in P gear. If the time is too long, the oil temperature of the gearbox will rise, and the increase in temperature will damage the oil quality. The P gear has a locking mechanism, which is a gear used when parking.

If P gear is applied at this time, and it happens to be rear-ended, then the gearbox will be seriously damaged.

When the car is driving on the highway, you can't jerk into a low gear. If you change gears suddenly, you will damage the gearbox, make a thin scream, and even burn out the gearbox. Therefore, when driving in D gear, you should control the throttle and brakes.

Automatic transmissions cannot coast in neutral.

The specific method of saving fuel when driving in automatic transmission:

1. Use coasting: It does not refer to sliding in neutral gear, and automatic transmission models should not be hung in "N" gear when driving, but by using the inertia of vehicle speed to release the accelerator pedal of the car and let the car slide, which can save a certain amount of oil.

2. Start gently: because the car is cold, the water temperature and other work are not in a normal state, so it will be more fuel-intensive. After the car starts, it warms up for about a minute.

3. Judging the traffic light: in the case of not passing, release the accelerator as early as possible to control the speed, avoid sudden braking, and save more than 30% of oil.

Introduction to automatic transmission:

Automatic transmission, as the name suggests, does not require the driver to manually change gears, and the vehicle will automatically select the appropriate gear according to the speed and traffic conditions. There are six gears on a general automatic transmission car, from top to bottom: P, R, N, D, S, and L.

The car that drives the automatic transmission only uses the parking gear P gear, the reverse gear R gear, the neutral N gear, and the forward gear D gear can fully meet the needs of general driving, and if you encounter some special driving environments, you need to use other functional gears. Therefore, if you are able to choose the right way to control the controls, the car with an automatic transmission will perform better than the manual transmission.

You can coast in neutral, but it is not recommended to do so, because in case there is an emergency when coasting in neutral gear, you need to step on the accelerator to avoid it, at this time you need to have one more action is to hang the gear, it is very likely that a traffic accident will occur because of this action, it is very dangerous, so it is recommended not to coast in neutral, and the impact of neutral coasting on fuel consumption is also very low. This is because the vehicle will also lose gasoline when idling.

Gliding can be gliding How far you have to look, at most a few meters away! If the distance is a little longer and the gearbox lubrication does not circulate, the consequence is that you are ready to pay for the gearbox after you coast in neutral! Therefore, driving in automatic transmission is forbidden to coast in neutral!

The automatic transmission car can not slide in neutral gear, the lubricating oil of the automatic transmission needs to be supplied by the engine, the oil pressure output when the engine is idling will be relatively low, and at this time, the automatic transmission is dragged by the wheel operation and has been running linkage, the oil pressure is low, the lubricating oil is less, and it is easy to cause the hydraulic reversing valve in the automatic transmission, the planetary gear and other components are poorly lubricated and worn seriously.

At the same time, a large amount of heat is generated, and too much heat will lead to the carbonization of the engine oil and the formation of sludge blocking the complex oil passage, resulting in insufficient oil supply after normal oil supply and poor lubrication, so the habit of coasting in neutral gear should not be used on automatic transmission models.

Automatic transmission driving requires attention.

Especially when driving an automatic transmission car, if you are driving an automatic transmission car, the owner should not do this, neutral driving, the car's gearbox will be damaged, it can be used for more than ten years, the owner frequently neutralizes the downhill, may only be able to use it for seven or eight years.

Hello, Happy New Year, dear, the car master for your service, attentive, careful, attentive to answer your car questions, for you to find the corresponding problem solutions and solutions, will provide you with a satisfactory answer! We hope you find this answer helpful. Happy Chinese New Year, Happy Year of the Tiger Hello friends, the automatic transmission of the car is not able to slide the first, automatic transmission of the vehicle, if the high-speed state of neutral sliding, this is easy to cause the transmission internal oil temperature is too high Second, if the neutral sliding, this is easy to cause serious wear and tear of the gearbox internal gear, which will lead to the gearbox can not run normally or the gearbox is scrapped.

Automatic transmission vehicles are not allowed to coast in neutral gear.

Automatic transmission is not recommended to coast in neutral, although the automatic transmission car can indeed coast when hanging on neutral gear when going downhill, but in serious cases, this practice will burn the gearbox and cause brake failure.

Under normal circumstances, there is no way for the automatic transmission car to be in N gear when driving in D gear, and it must be parked before it can be put into N gear, so there is no way for the automatic transmission to slide in neutral gear.

The only state that may occur when the car is downhill, the pure liquid tung is engaged in N gear in advance, and the neutral slide will occur with the inertia sliding. However, this situation is very harmful to the gearbox, and long-term neutral sliding downhill and stepping on the brakes will also lead to brake failure.

Coasting in neutral is not fuel-efficient for an automatic transmission

Coasting in neutral is not fuel-efficient, and sometimes even more fuel-intensive, and this is mainly related to the way the EFI engine works. EFI engines can be used to determine the amount of fuel injected according to the computer program.

In the case of gearing, if the owner releases the throttle, the computer will put the car into coasting mode, and for a long time, the engine is not injected; If you coast in neutral, the computer will put the car into idle mode and the engine will still be injected. That's why coasting in air gear is more fuel-intensive.

Automatic transmission cars are not allowed to coast in neutral gear.

Neutral coasting will make the gearbox less lubricated, and if you coast in neutral for a long time at high speeds, the transmission will wear out severely. The neutral gear of the automatic transmission car is also the N gear, so that when the gear lever is in the N gear, the dynamic group Huili input terminal and the power output end inside the automatic transmission will essentially produce mechanical separation, which means that the transmission is running under the condition of power transmission.

And if the automatic transmission car hangs on the n gear and continues to slide, the first thing is to reduce the lubrication effect of the gearbox, which directly increases the wear and tear of the parts of the gearbox, and if it is used for a long time, it will cause great damage to the gearbox, thus affecting the service life of the car. or Min.

Precautions for driving automatic transmission cars

1. The problem of switching gears when driving: automatic transmission cars are protected and interlocked for dangerous actions, if D gear is switched to R gear or P gear. Because these gears are unintentionally switched wrong, it is dangerous.

However, the switch between D and N gears can be arbitrarily chosen, and the dust answer is included in the driving process.

2. The slope will slip: If the automatic transmission vehicle is parked on a steep slope, its gravity is greater than the power "margin" at idling, the car will still slide, therefore, sometimes for insurance, it is best to start with the handbrake.

3. Prohibit neutral sliding: many drivers think that neutral sliding can save fuel, but this practice is wrong, the automatic transmission of the car hanging neutral sliding can not achieve the effect of fuel saving, long-term neutral sliding will lead to insufficient oil pressure in the hydraulic pipeline in the automatic transmission, which will not only increase friction and reduce the lubrication effect, but also damage the friction plate inside the automatic transmission.

Reasons why the car with automatic transmission cannot coast in neutral gear:

1. Different from the mechanical hard connection of manual gearbox, automatic gearbox uses hydraulic torque converter for power transmission. Pass.

The engine drives the transmission oil and indirectly transmits power to the wheels, all three of which coexist in the torque converter.

2. However, when the gearbox is in the empty rock shouting block, the engine speed will gradually fall back to the level of about 1000rpm (depending on the model). The wheels continue to rotate, driving the flow of transmission oil, but due to inertia, the transmission oil will be more concentrated on one side of the wheel. As a result, the gears of the transmission components can still be lubricated, even in neutral gear.

3. What really causes damage to the gearbox is actually caused by the speed difference between the wheel speed and the engine shaft. In the manual transmission model, the driver puts the gear from neutral to forward gear, can choose the appropriate gear according to the engine speed, and the clutch is semi-synchronized while still being controlled by refueling the wheel speed and the engine propeller shaft.

The automatic transmission car can coast in neutral gear, but it is not recommended to use neutral gear while driving, because neutral coasting is harmful to the automatic transmission. The automatic transmission needs to be lubricated, and the oil pump cannot supply oil normally for lubrication when the gear is placed on N during driving, which will heat up the internal parts of the gearbox and cause damage, so the neutral slide is very harmful to the automatic transmission.

Wearing N gear in an automatic transmission car while driving will also cause the braking force of the car to decrease. Because the car is in neutral, the hail pants between the engine and the drive wheels are lost, and the car moves forward by inertia, which will lead to reduced braking performance in the event of an emergency. It is said that the fuel saving in neutral gear is not actually fuel-efficient, fuel-saving or fuel-efficient, it is related to the way the engine works, the EFI engine is controlled according to the source of the computer program, the amount of fuel injection, release the throttle during driving, because the computer controls the engine is not fuel-injected, if it is in neutral gear, the computer will let the car enter the idle state, the engine is still fuel-injected, which makes the car more fuel-intensive.

In addition, if it is downhill in neutral gear, then you need to hang the low-width and easy-speed gear of the engine to control the speed, otherwise the speed of the neutral slide is too fast and it is likely to fail to brake the car, causing danger. Neutral sliding on a flat road is not as dangerous as going downhill, but you need to pay attention to the road conditions of other vehicles in time, and if there is a large truck next to you, do not slide in neutral for safety. (Photo by photo:.)

Pacific Automobile Network Chen Miaoling).