Although the people who take the C1 driver's license are still the mainstream, there are not many people who buy manual cars, and the 4S stores are basically automatic cars. If consumers want to buy a manual car, they may need to book on site. Automatic transmission cars have no clutch, the operation is simple, hanging a D gear can go around the world.
However, if you look closely at the automatic transmission in the car, you will find that there is not only one D gear on the transmission, and many cars have L gear and S gear. S gear is a sports gear that keeps cars running at high speeds, and this gear seems to be more suitable for highways with higher speeds. So when running at high speed, should I hang up D gear or S gear?
Insiders said that it is okay to run high-speed is to use D gear all the time, D gear is forward gear, it is suitable for all road conditions, running high speed is no exception. I have been hanging on the D gear, eliminating the need to switch gears. And this is also more fuel-efficient, no need to toss back and forth.
Frequent use of D gear to run at high speeds can make the transmission's control module easier to use. The road conditions on the highway are better than the road conditions in the city, and everyone who drives on the highway can step on the accelerator to the end, it is easy to encounter traffic jams, and it will not stop and go. In this case, the transmission's control module optimizes the gearbox for better operation.
Of course, the other gears on the gearbox are not all decorations, they can play different roles in different situations. In two cases, the effect of using S block is better than using D block.
First, want to overtake on the highway
S is an abbreviation for English Sport, and hanging up to S gear is equivalent to switching the car to sport mode. In Sport mode, the engine speed is maintained at a higher speed, allowing the vehicle to achieve higher output torque and acceleration.
Everyone's speed on the highway is very fast, if the other party runs 120 and you run 120, it is difficult to overtake. At this time, the cut switches to S gear, and the vehicle will go down at a low gear and high speed, which can obtain higher output torque. As long as the owner steps on the accelerator deeply, he can easily overtake the vehicle next to him and easily complete the overtaking.
The same is true when encountering climbs, if you want to climb quickly you can switch to S gear, and the vehicle can get more power.
In the second case, the engine carbon deposit is cleaned up at high speed
Now the traffic jam in the urban area is very serious, the vehicle is idle for a long time, and the mixture in the engine cannot be completely burned, which will produce carbon deposits. This carbon will attach to the engine, not only affecting the power of the vehicle, but also increasing the fuel consumption of the car.
Some car owners hear that running high speed can clean up the carbon deposit of the engine, so they will drive to the high speed and run. If you just run at high speed with D gear, the engine speed will be maintained at a low range, and the effect of cleaning up carbon deposits is not obvious. Hanging S gear can improve the speed of the engine, can effectively reduce the thickness of the carbon deposit layer, and achieve the cleaning effect.
S gear is a sports gear, also known as "overtaking gear", overtaking when using S gear will get better results. But everyone must remember that do not use S block for a long time. Because of the delay in moving from S gear to other gears, the gearbox has been moved to low gear, but the engine remains at a high speed, which will put a burden on the gearbox. Over time, it will cause damage to the gearbox and affect the service life of the car.
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