First, the hazards of high gear and low speed

1, driving in high gear and low speed is easy to cause carbon deposition inside the engine. When the carbon deposit reaches a certain level, it will lead to the failure of the vehicle, such as difficult starting, increased fuel consumption, decreased engine power and weak acceleration. The engine computer has a self-learning function, and will remember this driving habit, so the car will be weak in the future.

2. The engine and clutch are seriously worn, and the transmission ratio of high gear and low gear is poor, which is prone to engine jitter. Equivalent to gearbox braking, the clutch also bears huge friction. When excessive, the clutch slips and aggravates wear. Therefore, high gear and low speed will not save fuel and have side effects, so pay attention when using it.

Second, the harm of low-grade and high-speed

If you drive at low speed and high speed, you have to turn the engine more times for the same mileage. The more the engine rotates, the greater the wear and tear, and the more gasoline is consumed. Run the same distance in 2nd gear and 5th gear, and turn the 2nd gear engine at least twice as many times, so how much more engine wear will there be?

It is best to use the gear reasonably! Especially the new car running-in period! There is also a feeling that the car is not slow. It is recommended to run 20 kilometers every 5000 kilometers (120), which is good for the car!

3. Which is more harmful, low gear or high gear?

Compared with the two, of course, "high gear and low speed" is harmful!

Reminder: the old floor should learn more about the driving habits of taxi drivers. Generally, a taxi can't repair many engines for 300,000 kilometers. Why? That is, they have good driving habits and can accurately grasp the timing of gear shifting.