car are both forward gears. Logically speaking, there won't be much difference, and drivers will use them the same frequency. This is indeed true among novice drivers. D and S gears are used about the same frequency.
However, among veteran drivers, D and S gears have their own uses. For example, on the highway, many veteran drivers always use S gear when driving. So why is this?
S gear, which consumes more fuel,
Although D gear and S gear are both forward gears, they are different. According to the purpose and characteristics, the D file can be called , the economical file , and the S file can be called , the sports file . From the names of these two gears, we can see what their focus is.
D gear has lower fuel consumption, but the power is poor after fueling. S gear has strong power, but also consumes more fuel.
The reason why the S gear has high fuel consumption is because it delays the upgrade of to . That is to say, after the car adds fuel to increase the engine speed, the gear will wait until the speed stabilizes before upshifting. This high-speed and low-speed gear will naturally have higher fuel consumption.
This situation will become more serious if the car accelerates and decelerates frequently.
Advantages of S gear
But on the highway, you need to use the powerful S gear . People who often drive will gradually feel that the D gear is slower to accelerator. Usually, the car slowly picks up speed only when the accelerator is depressed. Situations like
are naturally not popular on highways. Cars on highways need to be very fast, and when encountering some special situations, such as overtaking, the car needs to change speed at a higher speed.
In this case, using D gear will bring a very bad driving experience to the driver.
Imagine that a driver has just passed the car in front. When he needs to speed up to increase the distance between the two cars, he steps on the accelerator and the car slowly speeds up. At this time, the driver behind impatiently honks the horn. Then How embarrassing the scene must be.
However, it is not absolute that D gear is more fuel-efficient than S gear. If the highway has a height difference of and , when climbing a hill, D gear, a high-end and low-speed gear, will actually increase fuel consumption. Moreover, D gear lacks power and may not be able to climb uphill.
In addition, when the car is traveling at high speed, the difference in fuel consumption between the low speed and high speed of the car engine is not too big. Therefore, S gear increases speed quickly and provides a good driving experience. It is a gear that is very suitable for highway driving.
For experienced drivers who have been driving for a long time, driving experience is very important. If the car speeds up slowly when the accelerator is pressed, it will make them very anxious.
When the car is in S gear all the way on the highway, the car responds quickly and has sufficient power. It slows down when you release your foot and accelerates when you step on the accelerator. The speed of the car is very linear and it is very comfortable to drive.
Advantages of D gear
Of course, S gear is only suitable for driving on the highway. After all, this gear consumes more fuel than D gear. In places such as residential areas and on commuter roads where the speed cannot be driven too fast, D gear is easier to use than S gear.
There are very few places where the speed needs to be increased. In these places, experienced drivers also step on the accelerator in a leisurely manner. There is no need for the car to step on the accelerator to speed up immediately.
And the D gear is more fuel-efficient , which is why many drivers prefer D gear. When the car speed is slower, shifting the D gear will save more fuel than shifting the S gear. When not on the highway, cars need to drive slower in many places. For example, the speed limit of cars in residential areas is directly limited to 5 kilometers per hour. In some congested road sections, cars even stop and go.
On these road sections, cars accelerate and decelerate quite frequently. As we said above, when the car is in S gear, the more frequently the car accelerates and decelerates, the more serious the problem of increased fuel consumption will be.
If you stick to S gear on these road sections, the car's fuel consumption may increase by 30% or more. Judging from the current gas prices, the driver will probably feel distressed.
