What is the ratio of car displacement to fuel consumption?

The higher the displacement of the same model, the higher the fuel consumption, but there is no fixed proportion, because there are other factors that affect fuel consumption, such as the weight of the car, the way the engine works, the driver's operating habits, the speed of driving and road conditions, etc., compared with other origin of the car, Japanese cars are more fuel-efficient because the body uses less steel and the body is lighter.

Probably 5-7 liters.

Displacement has a direct impact on fuel consumption. Because the displacement is the volume of the cylinder.

The amount of fuel injected is based on the volume of the cylinder.

Of course. There are many more that have to do with fuel consumption.

For example, the weight of the car. Timing of the change while driving.

There is more oyster sauce with a large displacement, and the weight of the body is also related, and it is also related to the driver's driving habits.

Usually we all think that the engine displacement determines the fuel consumption of the car, in general, it can be seen in this way, but if it is accurate, the engine displacement only reflects the characteristics of the engine, and the fuel consumption of the whole vehicle is different from it.

In a relative sense, the size of the car's displacement is not proportional to the size of the fuel consumption, for example, the same 4-liter displacement of the car, the fuel consumption is not necessarily equal. But in an absolute sense, a car with a large displacement will definitely consume more fuel than a car with a lower displacement. For example, within 100 kilometers, a 4-liter car will definitely consume more fuel than a 1-liter car.

In a general sense, the larger the compression ratio of a car engine, the higher the thermal efficiency and the more fuel-efficient the car is. However, the gasoline currently available on the market in China is only 97 at most, and the gasoline engine with a compression ratio of more than 10 0 needs 98 or more gasoline. Since there is no high-grade oil in China for high-compression ratio cars, it has formed a common phenomenon of low-grade oil for imported automobiles with high compression ratio, and then there is either the car shivering or stalling, or manually adjusting the relevant parameters of the engine, in order to sacrifice the amount of oil to "avoid" the phenomenon of the car lying in the nest.

The fuel consumption is directly proportional to the wind resistance of the car, and the wind resistance is also proportional to the volume of the car. Wind resistance is determined by the windward area of the car and the drag coefficient. Although the current cars are streamlined, and some high-end luxury cars have done a lot of work to reduce the drag coefficient, no matter how the large car is improved, its windward area is always much larger than that of the small car, and the fuel consumption is naturally much more than that of the small car.

Some high-end luxury cars, especially imported luxury cars, only emphasize their own drag coefficient advantages in the manual, and do not talk about the windward area, which is also aimed at avoiding this problem.

Fuel consumption is directly proportional to the weight of the car. In order to ensure the stability and comfort of the car, high-end luxury cars with large displacement use to increase the weight of their own equipment to increase the stability of the car, resulting in an increase in the rolling resistance of the car, and then an increase in fuel consumption.

As we all know, the stability and driving control of a wide tire are much better than that of a narrow tire, but it also has a large friction with the ground, and the rolling resistance to the car is correspondingly large, and its fuel consumption is naturally more than that of a narrow tire car.

And so on, so to speak, all the "advantages" on high-end luxury cars are at the expense of increasing fuel consumption.

In automobiles, how well the engine and the vehicle fit together also has a great impact on the car's fuel consumption. There are practical examples that show that if the adaptability of a small displacement engine is not good, it is likely that it will not be more fuel-efficient than a large displacement engine, and even more fuel-efficient than a large displacement engine. Especially for cars with heavy weight, if the displacement of the engine is too small, the use of small horse-drawn carts will inevitably make the engine run more at high speed and heavy load, thus consuming more gasoline.

However, if the engine is equipped with a large displacement, the amount of gasoline consumed does not change much because of the high torque and the need to press the accelerator pedal very deeply. In contrast, the result is likely to be that engines with smaller displacements are more fuel-intensive.

Therefore, when you choose a car, you should not only look at the displacement of the engine, but also consider the weight of the car.

Car displacement is one of the factors that harm fuel consumption, generally speaking, the larger the car displacement, the fuel consumption.

Fuel consumption is also affected by factors such as driving habits, driving roads, vehicle load, tire pressure standards and climate. Fuel consumption displacement of general displacement: 100 kilometers for manual models 4L, 100 kilometers for automatic models; Displacement:

5L for 100 kilometers for manual models, 6-7L for 100 kilometers for automatic models; Displacement: 100 km for manual models, 6-7L for 100 km for automatic models; Displacement: 7L around 100 kilometers for manual models.

In an absolute sense, large-displacement cars must consume more fuel than low-displacement cars, but there is no formula between displacement and fuel consumption, for example: the same 4L displacement car, driving the same 100 kilometers, different owners driving fuel consumption performance is also different; F1 cars, only turbocharged engines, fuel consumption is more than ten times that of family models; And some small-displacement engines will even cost more fuel than large-displacement cars if they are not well fitted.

To understand that displacement is not fuel consumption, it is a volume, used to measure the parameters of the car, simply put: a car engine has a number of cylinders, the volume of these cylinders adds up to the engine displacement, the displacement only reflects the characteristics of the engine, replaced by L, but the fuel consumption is also replaced by L.

The factors that affect the level of fuel consumption are:

1. The size of the displacement of the car engine itself.

2. Body quality, full load quality, driving road conditions.

3. Some car owners drive very gently, and some car owners accelerate and brake sharply, so the fuel consumption will be different depending on the driving habits.

4. Fuel consumption is proportional to wind resistance, and the car is large, resulting in large wind resistance, and fuel consumption will also increase.

5. The larger the compression ratio of the engine, the higher the thermal efficiency and the more fuel-efficient.