Why do different people drive the same car with different fuel consumption? How to step on the accelerator to save fuel when driving?

It is often seen on the Internet that different cars mainly consume fuel in the sun. Some people are different models of the same series. For example, Haval H6 has many styles that are dazzling. There are the second generation H6, the third generation H6, and the national tide version H6, and it is also divided into 1.5T and 2.0T If the models are different, the specific fuel consumption is meaningless.

However, different people drive the same car, and the fuel consumption is different. Let's take Haval H6 as an example. The same car, some people drive on urban roads every day, but they generally don't run fast on urban roads. There are countless traffic lights and traffic jams. The average speed of 20~40 km/h is good.

Some people run on national highways and provincial highways at a speed of 50 ~ 80km/h every day, while others run on expressways at a speed of100 ~120 km/h. ..

The fuel consumption of these three situations is also different. Take the third generation H6 with 1.5T as an example, the fuel consumption is generally around 10~ 14L on urban roads, 6~7L per 100 kilometers on national highways and 7~8L on expressways, which is specially tested.

So someone on the Internet said that my H6 is super fuel-efficient, and the fuel consumption per 100 kilometers is more than 10L. Others are right, too. When driving in the city every day, the speed can't be released. In addition, it is not surprising that the fuel consumption is high when parking, but it cannot be said that this H6 car has high fuel consumption. This is a road problem. Some people only have 6~7L of oil when they run national and provincial roads every day.

The final average shows that the comprehensive fuel consumption of H6 is about 7~9L. If the oil price per liter is calculated by 7 yuan, the oil cost per kilometer is 0.49~0.63 yuan, with an average of 0.56 yuan, which is not too high.

This is a situation where running on different roads leads to different fuel consumption. In fact, on the same road, different people drive the same car, and the fuel consumption is different. Why?

The reason is that everyone's driving habits are different.

Driving habits that affect fuel consumption mainly include the following points:

1, often step on the gas pedal.

Driving with a big foot throttle is the most gas-guzzling driving habit. There is a process for the engine to inhale gasoline. When the big foot throttle refuels, the amount of compressed gasoline entering the combustion chamber suddenly increases, and the heat energy cannot be converted into kinetic energy immediately. It needs to go through a series of procedures, first to the gearbox, and finally to the power system.

In addition, your speed is gradually increasing. No matter how powerful the car is, it takes several seconds to accelerate 100 kilometers. The average family car is even longer. Only a part of the oil added by bigfoot has played a role, and some of it is purely a loss. So the driving habit of refueling with big feet is very expensive.

2. Brake frequently.

Frequent braking also consumes a lot of fuel. Our family cars are generally hydraulically braked. When you step on the brakes, the brake oil will transmit the braking instructions to the braking system, and finally the pressure will be transmitted to the brake calipers, which will slow down the vehicle through friction with the wheels.

When you put on the brakes, the vehicle speed will decrease and the engine power will decrease. Then you can't stop the car and brake. If you want to continue driving, you must refuel, and then you must give the engine enough gasoline to restore the previous speed. This process is caused by fuel consumption and braking. Brake often, the speed changes greatly, and the more fuel is consumed.

3. Drive at super high speed.

Generally speaking, it refers to speeding violation. The most economical speed of a car is 80 km/h, beyond which the consumption of gasoline will increase greatly. Because the car is fast, the wind resistance will be great, and the resistance will be great. Cars need more power to overcome resistance, that is, they need more oil.

This is why high-speed is more expensive than provincial and national highways, but most national highways travel at a constant speed. If there are many speed limits or traffic lights, the fuel consumption will be much higher than high speed.

4, ultra-low speed driving.

Ultra-low speed driving means driving at a very slow speed, which is lower than the normal driving speed. For example, if you run for 20~30 km/h for a long time on the national highway, the engine will be in a low power state for a long time, and the combustion will be insufficient, which will consume a lot of gasoline. This principle is similar to the slow speed of stop-and-go in a city.

5. Idle for a long time.

Idle speed refers to the state that the automobile engine is running in neutral. At this time, the engine only keeps the basic work and does not distribute energy to the power system, but the oil has been consumed. To put it bluntly, the fuel consumption of a car at idle speed is generally about one liter of oil per hour, depending on the displacement.

If you idle for a long time, your car consumes gasoline but doesn't move forward, which is a waste. Minimizing the long idle time of the car will save fuel. Of course, idling for a short time does not affect it. For example, a manual car that slides in front of traffic lights is very fuel-efficient.

Different people have different fuel consumption when driving, mostly because these driving habits are different. See if you have these habits, so how can you save fuel by stepping on the gas pedal?

There is a principle to save fuel by stepping on the accelerator: refuel at a constant speed, and drive at a constant speed is the most fuel-efficient.

As I said before, the big foot throttle is filled with oil. How do I add it when I refuel? Come on at a constant speed, that is, keep the speed of stepping on the accelerator at a constant speed, and don't slam it.

As we all know, the engine is the most fuel-efficient under the best working conditions, that is, when the speed is kept constant. How to keep the speed constant? Even if the throttle is kept constant, the speed will not change much. But when driving, there will always be such and such situations. How to keep the speed uniform?

There is a way: predict in advance and step on the brakes less.

In non-emergency situations, many people will slow down by braking. In fact, it is better to control the speed with the throttle. For example, many people need to slow down at intersections. When they reached the intersection, they braked again, which directly reduced the speed and transmitted it to the engine, reducing the engine power.

In fact, we can predict in advance that when there is still a distance from the intersection, we will release the throttle in advance. As soon as we release the accelerator, the speed of the car will decrease. As long as it doesn't affect the crossing, it saves fuel and doesn't even have to step on the brakes. After waiting at the intersection, accelerating again will save fuel than braking directly.

The same is true when driving on the highway. Try to keep a speed, react in advance in case of any situation, keep the speed stable, and you can start the cruise at a fixed speed. If you are an old driver, you can achieve the effect of constant speed cruise without constant speed cruise. Don't underestimate this role. After years of accumulation, the fuel consumption gap between people has come out.