What common car knowledge is wrong?

Most people are rightcarThe professional knowledge of the company is at the entry level, so a lot of "automotive common sense" is also circulated on the Internet, which is wrong and false, so that everyone thinks that the "common sense" is correct.

So, what common car perceptions are wrong?

1.Rotating speedThe higher the fuel consumption. Wrong, in fact, the general car is the most fuel-efficient at 2000-3000 rpm, and it is more fuel-efficient if the speed is lower than the most fuel-efficient.

2. The larger the displacement, the more oil it consumes. mistaken! This is only under certain circumstances.

3. Manual gear is more fuel-efficient than automatic gear. mistaken! Today's automatic transmissions are already "smart".

4. Turbocharging is more fuel-efficient than naturally aspirated engines. mistaken! This is not necessarily.

5. The German and the American are fuel-efficient, while the Japanese and Korean are fuel-efficient. mistaken! In the actual test, you will find that the current German cars are actually very fuel-efficient!

6. The heavier the car, the safer it is. mistaken! The heavier the car's handling limit, the easier it is to break through, and the braking performance with large inertia will also decrease.

7. SUV is safer than sedan. mistaken! The center of gravity is high and it is easy to roll over.

8. The smaller the deformation of the vehicle after a collision, the better the safety of the vehicle. mistaken! You will be deformed if the car is not deformed!

9. American cars are safe, but Japanese cars are not safe. mistaken! Look at the collision of the IIHS, Honda often gets the highest score, and American cars have lower scores anyway.

10. The sedan is safer than the hatchback. mistaken! Still look at the structure, the sedan is not necessarily safer than the hatchback, some hatchback models often strengthen the tail, and after strengthening, it is more "crash-resistant" than the sedan.