9 major misunderstandings of daily car use, old drivers will make it, damage to the car is one of them, serious can cause traffic accidents, no matter new and old drivers, these 9 driving, car misunderstandings should be understood, try to avoid in the future.
Myth 1: Step on the clutch first and then on the brakes
When driving a manual transmission car, it is wrong to press the clutch and then the brake when braking, the correct sequence of operation: first apply the brake, then press the clutch. Why? The reason is that the brake is stepped on first (not clutched), the engine inertia is used to reduce the speed, assuming that the connection between the engine and the gearbox is interrupted due to the clutch and then the brake, and the brake disc is easy to overheat and cause brake failure.
Myth 2: Brake on the brake
Some remarks support the use of "point brake" for high-speed emergency braking to be safer, the so-called point brake: step-release-step-release cycle mode. The reason for support is to prevent the car from braking to the end and causing the car to lock up, and it is easy to overturn when turning or on slippery roads. The above concerns can be eliminated, and now the car is basically matched with ABS anti-lock braking function, there is no so-called emergency braking will overturn the situation, and there is no problem with stepping on it to the end.
Myth 3: It is safer to turn on double flashes on rainy days
In the mainland heavy rainy day on the road, encounter the most is to drive the "double flash" car, some people support this approach, in fact, there is no exact data in the country to show that the rainy day double flash is safer, road traffic regulations do not prohibit the rainstorm weather to open the double flashing lights, and the actual double flash will cause the driver to misunderstand the signal lights, easy to cause other traffic accidents, so it is recommended to use low beams, width lights, fog lights in rainy days better.
Myth 4: A hot start is good for the engine
The misunderstanding that the hot car starts well for the engine comes from the fact that the owner takes care of the car, which is counterproductive, not only does not love the car but damages the car. Now the car technology is mature and does not need to start the hot car, the car starts within a few seconds, the cooling system can start to work immediately, protect the car engine, the in-situ hot car is easy to cause carbon deposition in the engine, the spark plug life is shortened, the power is insufficient, and the fuel consumption increases.
Myth 5: The new car is waxed immediately when it lands
For the first car in life, many car owners like to wax the new car immediately on the ground, which makes it more glamorous, which seriously damages the car paint. There is nothing wrong with car care, new car waxing looks more novel, in fact, waxing has damage to the car paint layer, resulting in the middle layer of paint oxidation and darkening, and the car paint appears dull and dull for a long time.
Myth 6: 120km/h is the most fuel-efficient
The car 120km/h driving is the most fuel-efficient or the higher the speed, the more fuel-efficient is the wrong statement, the car has its own economic speed, the speed of more than 80km/h affects the biggest factor in fuel consumption is wind resistance, the economic speed of most cars is generally between 80-100km/h, air resistance is proportional to the square of the vehicle speed, the higher the driving speed, the greater the power requirement, the higher the fuel consumption. At speeds of more than 80 km/h, 60% of the energy is used to overcome wind resistance, so it is not necessarily that the higher the speed, the more fuel-efficient.
Myth 7: Hit the steering wheel in reverse with a flat tire
There are many "professional" teachings on the Internet that when driving at high speeds, the left front wheel (right front wheel) has a flat tire, and the steering wheel is hit to the right (left). This statement is false! A puncture in a high-speed car is not to hit the steering wheel in the opposite direction, nor is it a sudden brake, the first thing is to stay calm, straighten the steering wheel, and prevent the car from sliding, flicking and rolling. Again, it is to straighten the steering wheel, then brake slowly, pull over, and not hit the steering wheel.
Myth 8: High-grade gasoline is cleaner and more powerful
At present, there are 92/95/98 gasoline on the market, and car owners like to add high-grade gasoline to their cars, believing that high-grade gasoline is cleaner and has stronger combustion power. In fact, this statement is not scrutinized, the composition of different grades of gasoline is similar, but the octane number is different, and the gasoline with different labels is mainly to meet the needs of engines with different compression ratios. However, there is no situation where high-grade gasoline is cleaner and has stronger combustion power.
Myth 9: You can't go on the highway during the internship period
There is no situation where you can't get on the highway during the probationary period for your driver's license just taken for a driver's license, and you can also get on the highway during the internship period in the following situations. The condition is that the car must be accompanied by a driver with more than three years of driving experience in the passenger seat, and the car must be affixed with a practice sign, and those who meet the requirements can also go on the highway. If you are not accompanied by an "old" driver, it is recommended that you do not go to the highway during the internship period, and you will be fined if you are caught.