is the most concerned issue of many people. After all, for car owners, fuel saving is equal to saving money. In order to save the cost of using a car, everyone will choose a car with lower fuel consumption. The most direct link between
is that the displacement
produces different fuel consumption depending on the weight of the vehicle itself and the engine technology. Each car will be affixed with a label when it leaves the factory, showing some standard fuel consumption in the urban area and the efficiency zone. However, this does not indicate the specific fuel consumption of your car, because the fuel consumption is different under different road conditions. This "standard" value is for reference only.
In addition, you can see the universal characteristic graph
through the curve to reflect the different load and speed data, the universal characteristic graph can easily see the fuel utilization rate, so as to judge whether this car is fuel efficient. The fuel efficiency and coverage area of the engine are the key here.
However, although the universal characteristic diagram is extremely intuitive, it is still impossible to make accurate judgments on fuel consumption. First, rolling resistance, air resistance, and body weight will affect the engine; second, the gearbox strategy is also uncontrollable.
A motor efficiency chart of a certain electric vehicle
Simple self-test method: reset the kilometers to zero while filling up the fuel.
If you want to know the fuel consumption of your car, there is also a simple way to reset the kilometers to zero while filling up the fuel. Then drive according to your usual driving habits and road sections (you don’t have to choose a road section with fewer cars and fewer people for low fuel consumption, just take the usual commute road, so the measured result is accurate) when you run to 100 kilometers, fill it up immediately Fuel, see how many liters have been added, that is your fuel consumption per 100 kilometers.
takes an ordinary family car with automatic transmission as an example. With a 1.6L naturally aspirated engine, a fuel consumption of about 7.5L per 100 kilometers in the city is considered more fuel-efficient; for an SUV, it is also considered fuel-efficient within 8.5L/100km.
Fuel consumption has a great relationship with the driver's car habits.
For old drivers and novices, the same fuel consumption may be different when driving a car. Develop good driving habits, can also be regarded as fuel-saving skills.
● Plan road conditions in advance to avoid congestion;
● maintain reasonable distance between vehicles and avoid sudden braking;
● reasonably control vehicle speed to avoid unnecessary acceleration;
● stop for a long time to avoid unnecessary idling conditions;
● short distance Driving is the most fuel-intensive. If it is not necessary to avoid high-frequency short-distance trips, such as driving when going out to buy food;
● Select a reasonable gear for manual transmission, and choose an economic mode for automatic transmission;
● According to the manual, it is recommended to add fuel with the appropriate label , Too low grade fuel will affect power and fuel consumption, and too high grade fuel is meaningless;
● Adjust tire pressure in time according to the season, which is helpful for fuel saving and safety;
● Remove unnecessary luggage and The exterior decoration of the car can save you fuel from the perspective of weight and wind resistance;
● Maintain the car correctly and pay attention to the cleaning of carbon deposits. Every drive will accumulate carbon, and fuel consumption will increase over time. The deposited carbon is very absorbent and must be removed with a special cleaning agent.
Speaking of it, it's difficult for everyone to compare the fuel consumption level with accuracy. To talk about fuel consumption, a lot of preconditions must be added. High fuel consumption vehicles work under high fuel efficiency and low load, and fuel consumption will be low; otherwise, fuel consumption will be high for low fuel consumption vehicles.
talked for a long time and seemed inconclusive, but this happened to be the conclusion about the best fuel consumption: Don’t just evaluate the fuel consumption of a car by simply using a number without specific vehicle conditions. It’s better to refer to the Ministry of Industry and Information Technology for fuel consumption. You don’t have to waste brain cells to calculate it yourself, and you don’t need to cut it so fine~
Rather than worrying about fuel consumption, the editor thinks that it is more important for everyone to learn to identify wrong "fuel saving methods". It seems reasonable, but not only can it not save fuel, but it may also cause irreparable damage to the vehicle. Don't pay the "IQ tax" to save fuel! 👇
These "fuel-saving techniques" are all misunderstandings
coasting in neutral to save fuel.
Currently, all cars on the market use electronic injection engines. You can judge the amount of fuel injection according to the computer program. When coasting in neutral, the engine is very No fuel injection for a long time. If you select "Neutral coasting", the computer will put the vehicle into "idling mode" and sendThe motivation is still fueled, but it is more fuel-intensive. In addition, coasting in neutral gear will cause the engine to lose traction and braking power, which can be very dangerous in emergencies.
tire pressure is high and fuel efficient.
tire pressure itself has little effect on fuel consumption. When the tire pressure is too high, not only will it not save fuel, but it will also reduce the friction of the tire and affect the braking effect. In addition, it will increase the possibility of a tire blowout. So, just adjust the tire pressure in accordance with the manufacturer's standards.
High-end low-speed fuel-saving
Generally, when driving normally, the engine speed is maintained at 2000r/min—3000r/min. This speed range has covered all gears of the transmission. If driving at a high-end and low-speed forcibly, the traction of the vehicle is insufficient, the power output is weak, carbon deposits are easily formed in the cylinder, the power system is damaged, and the service life of the engine will be shortened, and it will not save fuel.
Decrease the fuel label:
For gasoline engines, the fuel label represents the knock resistance of this product. Generally speaking, the higher the compression ratio, the higher the fuel label and the higher the price. However, if you lower the fuel label of your vehicle in order to save a few cents, the fuel may explode at a time when it shouldn’t burn and explode. In the light of this, it will cause the engine to shake, and in the worst, it will cause carbon deposits in the cylinder or even more serious. Engine damage! Therefore, the fuel label selection should be based on the manufacturer's recommendation.
does not fill up the fuel. The weight of a half tank of
is actually not as great as the difference between a child and an adult sitting in a car. If the fuel is not filled up for a long time and only half a tank is added, not only the fuel saving effect is not obvious, but it may also have an adverse effect on the car. This is because the oil pump in the oil tank has a high temperature during operation, and the oil can play a good role in cooling down when immersed in the oil. If there is always half a tank of oil in the oil tank, and the oil level is too low, the oil pump will be working at high temperature for a long time, which will shorten its service life. In addition, when the vehicle is bumpy, if the liquid level is too low, the oil pump may be emptied from time to time, which will not only damage the oil pump, but also increase the burden on the engine.
The serious things are done, and finally I can tell the truth: Since I bought a car, I think about fuel-saving every day. What's the point of driving? Should you step on the accelerator, you still have to step on it, and you still have to add it after all. Complying with traffic regulations, driving seriously, and improving driving skills are the most important. One fine is enough for you to add a tank of fuel!
This article comes from the author of Autohome and does not represent the viewpoint of Autohome.
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