Does coasting in neutral of an automatic car damage the car?

Automatic transmissions are strictly forbidden to coast in neutral gear. Because the automatic transmission needs lubrication, when the gear is placed on N during driving, the oil pump cannot supply oil normally for lubrication, which will increase the temperature of the internal parts of the gearbox, causing complete damage! In addition, it is very dangerous to coast in neutral at high speeds, and it is not fuel-efficient!

Automatic transmission cars are not allowed to coast in neutral gear, and coasting in neutral is very harmful to the gearbox.

There are three effects:

1. Coasting in neutral gear is not necessarily fuel-efficient, but fuel-efficient, and the vehicle may slip.

At present, more and more EFI cars are not necessarily fuel-efficient when coasting in neutral gear, because some cars release the throttle during acceleration, and the fuel injection system stops supplying fuel, so the EFI vehicle will save fuel when coasting with gear at high speed, and it will cost fuel when hanging neutral. The neutral coasting wheels will continue to drive the turbine to agitate the automatic transmission oil at high speed, and the automatic transmission oil pump will stop working because of the gear, and all the components in the transmission will not get any heat dissipation, which will cause damage to the internal parts of the automatic transmission, and the vehicle will slip and other fault phenomena.

2. The automatic transmission may be damaged when coasting in neutral gear.

When coasting in neutral gear, due to the difference between the driving speed of the car and the engine speed, the friction will be increased, the lubrication effect will be reduced, and the wear of the internal friction plate of the automatic gearbox will also be accelerated.

3. Neutral sliding is not conducive to engine braking, and the vehicle may shift unsmoothly.

Coasting in neutral also has an effect on braking. Tenghua automatic transmission maintenance reminder when coasting in neutral, because the engine and the automatic gearbox are in a state of disengagement, the car will always be in an accelerated state, the faster it slides, the closer the distance between the two cars, when the front car has an emergency stop, the possibility of rear-end collision will be very large. The automatic transmission is basically computer-controlled, because when the transmission matches the data, the neutral coasting may cause rough gearing, resulting in uneven shifting.

How harmful is coasting in neutral for an automatic transmission? Novice drivers must figure it out, otherwise it will hurt the car.

Coasting in neutral for an automatic car is detrimental to the transmission. When the automatic transmission car is engaged in N gear and coasting while driving, the oil pump of the automatic transmission cannot supply oil normally for lubrication when it is in N gear, which will increase the temperature of the internal parts of the gearbox and cause complete damage.

Neutral coasting refers to the operation method in which the driver puts the gear lever in the neutral position to separate the engine from the clutch of the driving wheel and use the inertia of the vehicle to drive while the motor vehicle is driving. Neutral coasting must be carried out under the condition of ensuring safety and the technical condition of the vehicle, and it is not allowed to turn off the ignition and slide, especially when descending a steep or long slope.

Precautions for neutral coasting.

1. Neutral coasting is greatly discounted in terms of safety, in fact, the advance of the vehicle must rely on the torque exerted by the engine, the torque of the high gear is small, the throttle response is slow, and the acceleration slows down, so the correct overtaking should be slowed down by one gear, and the automatic transmission only needs to press the accelerator to the end, and the transmission will be lowered by one gear to provide enough torque.

2. Neutral coasting is not fuel-efficient, and sometimes even more fuel-intensive, which is mainly related to the working mode of the EFI engine. 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.

Pacific Automobile Network] automatic transmission neutral coasting has an impact on the car, because when switching to neutral, the gearbox does not supply oil, but it is still moving, so no oil lubrication will accelerate the wear of the gearbox, so the automatic transmission is forbidden to slide the neutral position.

Automatic neutral slippage is harmful to the car, because when switching to neutral, the transmission does not supply oil, but it is still moving, so no oil lubrication will accelerate the wear of the gearbox, so automatic transmission is forbidden to slide neutral.

The car with an automatic transmission cannot slide into neutral. Modern cars are all computer-controlled fuel injection. If you release the accelerator pedal while coasting, the computer will automatically cut off fuel when the engine revs beyond idle, which is as fuel-efficient as a car.

If coasting in neutral, the engine runs at idle speed, but it consumes oil. In addition, automatic transmission cars are lubricated by oil pressure. The neutral coasting mechanism does not have the right to start the oil pressure.

The gearbox is prone to combustion. When a car with the same automatic transmission breaks down, long-distance towing is not possible.

Neutral coasting refers to the operation method in which the driver puts the gear lever in neutral position, separates the engine from the clutch of the driving wheels, and uses the inertia of the vehicle to drive. The air taxi must be carried out under the condition of ensuring the safety and technical condition of the vehicle, and it is not allowed to turn off the engine, especially when going down a steep slope or a long slope, it is not allowed to turn off the engine or take a car empty.

Photo by Pacific Automobile Network Q&A).

Automatic transmission neutral coasting has an impact on the car. Once in neutral, the wheels are mechanically disconnected from the engine, and then the brakes can only be used to control the speed, and the brakes are components that convert kinetic energy into heat energy by friction, and the performance is easy to deteriorate or even fail when working for a long time. That's why it's common on highways to avoid avoidance lanes for large vehicles with failed brakes.

Neutral Coast Severity:The most serious problem with coasting in neutral is safety, because when coasting downhill, the car continues to drive forward by inertia and gravity, and if you coast in gear, then the engine is "dragged" by the wheels and rotates, which plays the role of "braking".

Therefore, it is not recommended that the owner try to coast in neutral, although there is no accurate statement that coasting in neutral will cause substantial damage to the vehicle or can save fuel, but it is clear that coasting in neutral has serious safety risks.