What is the relationship between the displacement of a car and the fuel consumption of an engine?

The larger the displacement, the higher the fuel cost.

The larger the car's exhaust, the more fuel the engine consumes! ~

The relationship between exhaust and fuel consumption is as follows: 1. Intuitively speaking, the larger the displacement, the greater the fuel consumption, but it is not predetermined. Because there are too many factors influencing fuel consumption; 2. For example, the technical content of the engine:

I'm afraid that the QQ will not save much fuel than the Volkswagen engine, and even consume more fuel; 3. Similarly, the weight of the body, the driver's driving habits, etc. will affect the level of fuel consumption. If there is a lack of small displacement engines with "big cars", then in order to meet the power demand, the engine needs a larger torque output, so the speed is also raised; 4. If it is an engine with a slightly larger displacement, there is no need to increase the speed. Because he can achieve the required power demand at a relatively gentle speed.

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.

The larger the displacement of the car's engine, the greater the horsepower and power, that is, the car is more powerful, and the starting speed, acceleration performance and top speed will be enhanced; Of course, the fuel consumed will also increase accordingly. On the contrary, the displacement is smaller, the performance is correspondingly weakened, but the fuel consumption is reduced; However, the fuel consumption of the car is not only related to the exhaust volume of the engine, but also closely related to the wind resistance design of the car, its own weight, the size and width of the tires, and the driving habits of the driver. Driving always turns, always stepping on the brakes, always driving fast (more than 90 km) or slow (less than 40 km), changing gears in time, pressing the accelerator is not when, and it will naturally cost fuel.

In addition, manual cars are more fuel-efficient than automatic cars, and traffic in the city is congested, so driving in the city is naturally more fuel-efficient than driving on the highway. Turning on the air conditioner will also correspondingly consume the efficiency of the car, especially for small displacement

Cars are indeed a great subject. The more you learn, the more miscellaneous it becomes. What is the relationship between displacement and fuel consumption?

Vehicle displacement, a term used for hydraulic transmission, refers to the amount of fluid drawn or discharged per stroke or cycle. Car displacement is an important parameter to measure a car. There are also some domestic cars, the tail does not have the above model, but its displacement is generally written on the body or rear.

There is a certain relationship between displacement and fuel consumption, but large fuel consumption and displacement are not necessarily large. Relatively speaking, the displacement of a car is not directly proportional to fuel consumption. In addition to displacement, the shape, dead weight and engine technology of the car are also important factors that affect fuel consumption.

In a vehicle with the same displacement, the more advanced the engine technology, the more fuel-efficient the car will be. This engine technology is generally reflected in: whether it is a variable timing valve system (VVT), whether it has enough valves, whether it is a turbocharged engine, etc.

For example, the variable valve timing engine has fast growth, large torque output, high air intake, and relatively saves fuel consumption, so fuel consumption is low; The more engine valves, the lower the fuel consumption.