With higher and higher oil prices, more and more attention is being paid to fuel economy. Although many car owners have awareness of environmental protection and energy conservation, they do not know enough about fuel-saving techniques and listen to biased beliefs, resulting in many "misunderstandings". Therefore, it is necessary to accumulate some fuel-saving skills and experience, whether it is for environmental protection or cost savings. Understanding oil-saving errors is undoubtedly one of the "required courses".
Misunderstanding 1: Reducing Fuel Numbering For gasoline engines, the fuel number represents the detonation resistance of the oil. Generally speaking, the higher the compression ratio, the higher the number of fuels that need to be filled. If the fuel number of the vehicle is reduced to save a few cents, the fuel may disturb the combustion design of the original design of the vehicle, and the engine jitter may be caused, and the cylinder fouling or even more serious engine damage may be caused. .
Misunderstanding 2: intentional low-speed driving intentionally let the engine work in the low-speed range is also a big mistake, the driver intentionally low speed high gear will increase the engine's burden, and too low speed will make the engine's combustion is not enough Formation of carbon deposits. What's more, at the start, he deliberately did not step on the gas pedal. He said that he wanted to save fuel, but the slow speed added a burden to the public road. The most reasonable way to drive is to make the engine's working speed more in the economical speed range.
Myth #3: Air-slipping behavior is in fact fuel-efficient. In fact, many models of electronic-jet engine technology have been able to make vehicles in the coasting state completely without fuel injection. The neutral-sliding engine will be considered as "idle state" and therefore spouted. Extra fuel. Moreover, due to safety considerations, it is strictly prohibited on the downhill when the neutral air glide, because at this time there is no traction resistance of the engine, the speed will be faster and faster, if you simply use the foot brake to control the speed, brake temperature will make the brakes Increase, thereby weakening the braking force and affecting the braking effect.
Misunderstanding 4: Can hot fuel be advanced in advance?
Many owners are accustomed to hot cars for a period of time after they are started. They think that it is a way to love cars and they can also achieve fuel-efficient results while driving. This practice is also one of the errors.
With the development of the automobile industry, new cars introduced in recent years have been greatly improved in technology, and no longer advocate hot cars in advance. In fact, this type of operation is time consuming and it may also directly damage the car. According to a group of related survey data, in the newly-introduced models in recent years, about 90% of the engine parts' wear and tear problems were caused within 3 minutes after the cold vehicle was launched. It can be seen that the hot car time should not be too long can not only save fuel, but also help the car.
Myth 5: It is correct to minimize fuel consumption and vehicle weight. However, many vehicle owners must consider this factor and add as little as possible when refueling. Theoretically, this approach is understandable, but the actual situation is not the case? The reason is mainly from oil products.
Although the oil label is the same, there are subtle differences in the quality of the oil at different times. In the process of use, frequent refueling will result in inconsistent quality of oil products, resulting in inadequate combustion in the engine, which will affect the power of the car and increase fuel consumption. This practice is not scientific with respect to the limited fuel load.
Misunderstanding #6: Stopping the engine for a short time can save fuel?
Extinguishment of the car will definitely save fuel, but there is another problem: The engine consumes a lot of fuel every time it is started. It is usually about 20% higher than the normal operating state, and it can't be generalized.
Some car owners like to turn off the car when parking for a short time. Now it may be necessary to consider the length of stay. In addition, the engine as the heart of the car, many times out, start will inevitably reduce its useful life.
Misunderstanding 7: Manual transmission is more entrenched than the automatic transmission. There may be a slight change now.
In the past, the concept of automatic transmission was largely confined to the ordinary four-speed automatic transmission. In today's rapid development of automotive technology, five-speed automatic transmissions, six-speed automatic transmissions, and even seven-speed automatic transmissions have all been equipped in some new vehicles, and the design of transmission gear ratios has undergone some changes. The argument that manual transmission is more fuel efficient than automatic transmission is no longer a scientific statement.
In addition, because of the difference in driving techniques and driving habits, it is also possible that the manual transmission will consume more fuel than the automatic transmission.
Misunderstanding 8: The smaller the emissions, the more fuel-efficient?
In general, small-displacement vehicles consume less fuel than large-displacement vehicles, but this is not absolute. Many models with large displacements are lighter in weight and equipped with advanced engines. The actual fuel consumption is not as high as that of small-displacement vehicles. This is the result of a comprehensive consideration.
Misunderstanding 9: The same level of vehicles, the smaller the power, torque, the more fuel-efficient, high-power, high-torque is easily reminiscent of high fuel consumption. In fact, this has a lot to do with the manufacturers' adjustment of the models.
Some engine technologies are advanced, and the power output produced by them is very smooth, with good linearity, and the maximum output power and peak torque can be reached under the commonly used speed range, fully supporting the driving of the car. In this case, the car does not appear to have high fuel consumption. On the contrary, the situation of small marathon carts is not uncommon. Due to lack of power, fuel consumption has risen steadily.
Misunderstanding 10: fuel-efficient products really effective?
At present, there are no definitive standards in China to evaluate the fuel-saving effect of fuel-saving products. In this regard, it is advisable to take a cautious approach.
Many automobile manufacturers have noticed the problem of fuel economy in engine development, vehicle R&D and other processes. Many models have a reasonable fuel-saving device at the time of shipment, and it is easy to modify them to “stealing chickens without corrosionâ€. . The variety of fuel-saving products on the market today is different and the principles vary. It is best to take a cautious approach to this type of product, not to superstition the effect of publicity. According to relevant investigations, it is not uncommon for damage to the car to be caused by the installation of “fuel-saving devicesâ€, but the fuel-saving effect is not obvious.
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