Does neutral coasting consume fuel, and does neutral coasting save fuel?

Neutral coasting still consumes fuel, unless your engine is turned off, as long as the engine is running, it will consume fuel, don't forget, the engine is maintained by burning oil, coasting must be in neutral, step on the clutch,

Neutral coasting is not fuel-efficient: 1. Auto repair experts say that neutral coasting is not fuel-efficient, and sometimes even more fuel-efficient, which is mainly related to the working mode of the EFI engine. EFI engine, according to the computer program to judge the amount of fuel injection;

2. In the case of gearing, if the owner releases the accelerator, the computer will let the car enter the 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 sometimes coasting in air gear is more fuel-intensive;

3. Maintenance experts said that even if there is a situation of neutral sliding and fuel saving, it is also conditional. Due to the pull-in effect of the engine, the distance of coasting in neutral is longer. Sometimes you can't slide with gear, and then go to the gas pedal, which costs fuel.

However, for automatic cars, coasting in neutral gear (N gear) not only does not save fuel, but also damages the transmission rock box;

4. I sell my car network to summarize below, for carburetor engines, neutral coasting can indeed save fuel, which makes many old drivers develop the habit of hanging neutral gear when they have the opportunity. But now, these habits have become a model for error. Since the carburetor pure engine on the market is almost extinct, the EFI engine has become the mainstream, and the view on neutral coasting should also be clear:

It is not fuel-efficient, and sometimes it does cost fuel;

5. In addition, the automatic transmission car slides in neutral gear, which will also cause damage to the car. The old driver also said that sliding in neutral gear will cause the braking distance of the car to be extended, and it is easy to rear-end collision. Therefore, sliding in neutral gear has reached the situation of "there are all kinds of harm and a few thick pants are pure and there is no benefit", and it is recommended that you do not use neutral sliding anymore.

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Empty gear gliding is a common topic. Many veteran drivers think that empty is the most fuel-efficient driving method, but it is not. Not every car fits into neutral, otherwise it will be counterproductive.

Do empty taxis save on fuel?

For an aging saloon car, idling is the most fuel-efficient state of the engine, and rightly so. But today's cars are all EFI. When coasting in gear, the spindle computer reduces the amount of fuel injected according to the speed of the vehicle.

When a certain speed is reached, the fuel will automatically be cut off, and its fuel consumption is lower than the idle fuel consumption (instantaneous fuel consumption verification can be observed). Therefore, the assertion that coasting in neutral can save oil on sailboats is not valid.

What are the hazards of idle gear running for a car?

1.The only threat of empty gear slippage is to increase the burden on the braking system when braking is required, leading to early thermal decay (which also occurs in gears, but only later), which only occurs on long downhills, and it doesn't matter if the city road is short or flat.

2.Then, let's talk about fuel saving. It's true that the current EFI trucks, both geared and ungeared, do not use fuel when coasting.

However, the control system of most EFI engines has the function of deceleration or oil cut-off. With these EFI engines, it is no longer necessary to coast in neutral to save fuel. If the neutral gear slips, it will save fuel.

From above, we can see that coasting in neutral not only saves fuel, but also damages the car. Therefore, car owners and friends must put an end to neutral sliding and develop good driving habits.

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Neutral coasting means:

When the motor vehicle is moving, the driver takes advantage of the vehicle's inertia by placing the gear lever in neutral position and disengaging the clutch between the engine and the drive wheels. Coasting in neutral gear shall be carried out under the condition of ensuring safety and the technical condition of the vehicle is normal. Stall coasting is not permitted, especially when descending steep or long slopes.

In fact, "neutral taxis are fuel-efficient" is an illusion. Let's take a look.

Fuel consumption at idle. When you are in neutral, the engine is still idling, and there is also idle fuel consumption. The relative fuel consumption is indeed less than when you are driving, because you don't step on the accelerator when you are loose.

Fuel consumption is lower when the speed is reduced.

I'm exaggerating. When you step on the accelerator at 3000 rpm in neutral, the fuel consumption is basically the same as when you are in 3000 rpm.

It's because your speed drops that your fuel consumption is lower than your normal driving fuel, and it has nothing to do with neutral.

Automatic neutral can hurt the car.

Auto Gear cannot coast in neutral. If the automatic is coasting in neutral, the oil pressure in your transmission will drop.

There will be problems with automatic cooling. Some cars have special structures. If you coast in neutral for a long time, this gearbox will burn out. Don't do that.

Generally, the carburetor car is fuel-saving in neutral sliding, and the EFI vehicle stops supplying fuel because the foot leaves the throttle engine. So coasting in neutral doesn't mean much to save fuel. If you want to run a red light, you can coast in neutral.

What is it like to coast in gear? It is not recommended to coast in the urban area, it is recommended to coast in neutral. Downhill, no regrets are recommended to coast in neutral, and it is recommended to slide in gear.

These should be based on a comprehensive consideration of what to drive and road conditions, as well as flexible decisions about driving skills.

Only the gears can lubricate the engine with oil. Gear is to hang the gear in 1st or 2nd gear when going downhill, and use the braking force of the engine to control the speed of the vehicle to avoid traffic accidents that occur too fast downhill.

When can I coast in neutral?

Glide at a red light.

So the easiest technique for us now is to say you slip, just take care of yourself, let go of the throttle and slide forward.

Automatic gear, manual gear, unless it's almost a red light, and then you put it in gear, so that there will be no shaking and dismantling when parking.

In other cases, do not slip, it will affect safety.

Do not drive downhill, uphill, or on flat roads. At this time, if you are carefree, just hang neutral and slide all the way forward, which will not affect the safe operation. Actually, it's not very fuel-efficient.

So, don't listen to these old trolls. Coasting in neutral gear is fuel-efficient.

Coasting in neutral is for the convenience of this traffic light intersection, and it has nothing to do with fuel saving.

Neutral coasting is not fuel-efficient. Neutral and belt-sliding, with a gear-down slide pants rubber is more fuel-efficient. Neutral Coast:

It is to take off the gear, let the car through inertia, slide forward, special reminder, neutral sliding, just for automatic gear, manual gear must not coast in neutral, because the manual gear is running, hang on neutral, but the gearbox is still running, it will be due to the lack of oil lubrication, resulting in wear. When the engine is in a low-speed power-off and a high-speed power-off, the driving computer will detect that the car is in an idle state, but the speed is higher than the speed, and the computer will control the engine to stop supplying oil. The precautions for the use of automobile engines are as follows:

1. Avoid driving in neutral gear: the engine itself has the function of decelerating and breaking the posture of pure oil, if neutral gear is not conducive to fuel saving;

2. Pay attention to observation when using the vehicle, judge whether there is engine oil leakage when you find oil on the ground, and communicate with the car 4S shop when you are losing money to get rid of potential safety hazards;

3. Cars equipped with turbochargers, do not turn off immediately after high-speed driving or climbing, and then turn off after idling for 10 minutes.

4. When the brake fluid is mixed or inhaled with water, or the brake fluid is found to have impurities or sediments, it should be replaced or carefully filtered in time, otherwise it will cause insufficient braking pressure, which will affect the braking effect.

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Hanging neutral gear is not fuel-efficient, the current car engine is controlled by electronic sensors and electronic controllers to control fuel injection ignition, at a certain operating speed to relax the throttle without neutral gear, do not step on the clutch, is driven by inertia to run, the engine will stop fuel injection, ignition, to play a fuel-saving effect. This is a good driving habit, every time you encounter a red light or a downhill section while driving, lose the accelerator and don't hit neutral or step on the clutch, so that the inertia pushes the operation to save fuel. If it is in neutral gear, the engine needs to idle and rotate, and the fuel consumption of 100 kilometers should be more than 3 liters, so neutral gear is not fuel-efficient.

The danger of coasting in neutral is only in the long-distance downhill that is the kind of downhill in the mountains for several kilometers or ten kilometers in a row If you keep pressing on the brakes, then the brakes may overheat due to continuous use, resulting in a decline in braking performance with the engine in gear can prevent this.

Fuel consumption, EFI decelerates and reduces fuel until the fuel is cut off, and then injects fuel when the engine speed is lower than a certain value. When in neutral gear, the oil has been sprayed, and that part of the oil can not be fully burned in vain, and it is easy to hinder the combustion of the oil during normal driving, resulting in the fuel cost of the vehicle.

Not only will it not save fuel but it is also very dangerous, for example, there are some older cars, which are easy to stall in neutral, and many mechanically assisted cars, the direction is gone, and the brakes are gone, so it is not recommended

Is it possible to save a little fuel by coasting in neutral when you see a red light at an intersection or when you have a long downhill? From a technical point of view, sometimes yes, but it is difficult to say whether the little gas money saved is enough for other expenses that may increase as a result.

, the driving habit of grabbing when you see the vacancy. In daily driving, especially when the traffic is not smooth, waiting for a red light, and changing lanes, this phenomenon is common: as soon as the adjacent lane is vacant, a car here suddenly accelerates and squeezes over, and has to step on the brakes when it passes.

After a while, there was a vacancy in the lane here, and he stepped on the gas pedal and squeezed back. Waiting for a signal, he can accelerate sharply and stop four or five times. This looks very chic, very imposing, and very vibrant, but at the cost of greatly increasing fuel consumption.

How much to increase, experts have done an accelerated driving fuel consumption test: let the vehicle drive at a constant speed into the test section, the test driver will step on the accelerator to the end, after completing the specified distance of driving, it is found that the fuel consumption has increased by 2 3 times compared with the uniform speed driving.

2. The habit of driving long distances at low gear, high speed, this mostly happens to beginners, and it also often happens to people who are easy to get distracted when driving. Three-gear long-distance high-speed driving, compared with four-gear normal driving fuel consumption will increase by 10%, and if the second gear is used instead of three-gear driving, fuel consumption will increase.

Modern cars have regulations for shifting gears, and the engine speed must reach the specified number of revolutions before the gear can be added, which is from the perspective of protecting the engine. But some people go to extremes and don't shift until the engine revs exceed the specified number of speeds, which also results in wasted fuel. Experts believe that:

Low gears and high speeds definitely cost fuel. High gears and low speeds are definitely fuel-efficient.

3. Short-sightedness and improper measures when driving.

Many people drive by staring only at the movement of one car in front of them, not paying attention to the situation of the first few cars, and not paying attention to the situation on both sides of the road. Sometimes the front team slows down, the red light is lit into a string, this person is still stepping on the accelerator to accelerate, and when he finds that the brake light of the car in front of him is on, his speed has just been raised, and he brakes hurriedly. Sometimes cars or people come out of the roadside, and because they are found late, they have to brake suddenly.

There are also some people who are distracted while driving, and when there is a situation, they rely on sudden braking to save the emergency. Braking is to convert the kinetic energy generated by gasoline into friction force through the friction between the wheels and the ground. If you brake more times unnecessarily, fuel consumption will inevitably increase.