What is the standard tire pressure of automobile tires? Is it 2.3 or 2.5? The old driver came to reveal the secret for you.

The tire is an important factor for the safe driving of the automobile, and the tire pressure maintains the tire life, so the standard tire pressure is extremely important. Many people have a vague concept of tire pressure. They don't care how much the tire pressure hits unless there is a flat air or a flat tire. Today, let's talk about how appropriate the tire pressure is.

Is the standard tire pressure of automobile tires 2.3 or 2.5?

The tire pressure of ordinary cars can be controlled at around 2.2-2.5, but the standards of different models are different. Please refer to the owner's manual or the labels on the doors and other locations. It is a good habit to pay attention to the tire pressure, but there is no need to fidget about the tire pressure difference of 0. 1. If the car is not equipped with tire pressure monitoring, you can prepare a tire pressure gauge or install tire pressure monitoring to know the tire pressure in time.

Because of the high temperature in summer, the normal tire pressure of the car needs to be reduced. Because the temperature is relatively high when driving in summer, the tire temperature will also rise during driving, and the tire pressure will also rise, so the tire pressure should be reduced by 0. 1 to 0.2 in summer. On the contrary, because of the low temperature in winter, the tire pressure is 0. 1 to 0.2 points higher than usual.

Standard tire pressure (referred to as standard tire pressure) can usually be found in the following places:

A. vehicle user manual;

B. Label next to the cab door (near the B-pillar);

C. the drawer next to the driver's seat of the vehicle;

D. fuel tank cover door;

E. The tire pressure of the car is near the doorpost or on the fuel tank cover, or look at the passenger door of your car.

Different models have different weights and tires. Front wheels and rear wheels are generally different.

Tire pressure reference values commonly used by some brands and models

What are the hazards of high or low tire pressure?

Harm of low tire pressure

The tire is soft when it is depressed, and it is deformed greatly when driving. The tire will touch the ground once every turn. The lower the tire pressure, the longer it takes to recover the deformation. In other words, the lower the tire pressure, the faster you drive, and the more likely it is to produce a standing wave. This phenomenon will lead to a rapid rise in tire temperature, resulting in a flat tire.

1, the friction coefficient with the road surface will increase, and the fuel consumption will increase;

2. The friction between the tire and the ground increases exponentially, the tire temperature rises sharply, the tire softens, the strength drops sharply, and the vehicle runs at high speed, which may lead to a puncture;

3. If the tire pressure is too low, the deformation of the carcass will increase, and cracks will easily appear on the sidewall, and buckling will occur at the same time, which will lead to tire overheating, rubber aging, tire cord fatigue and cord breakage, and will also increase the tire contact area and accelerate tire shoulder wear;

4. The steering wheel of the vehicle becomes heavier, which is easy to run off, with poor handling and loud tire noise.

Harm of high tire pressure

When the tire pressure increases, the tire will harden, the effective grounding area will decrease, and the rolling resistance will also decrease accordingly, so it is more fuel-efficient. But don't forget that the braking effect when braking is also directly related to this grounding area. Every coin has its two sides. A few liters of gasoline will cost tens of dollars, and it will be a big problem if you can't stop.

1, the friction and adhesion of the tire will be reduced, which will affect the braking effect;

2, leading to steering wheel jitter and deviation, reducing driving comfort;

3. Accelerate the local wear of the central tread pattern of the tire, which will easily lead to tire bulging and stone inclusion;

4. It will cause the tire cord to be excessively stretched and deformed, and the elasticity of the carcass will decrease, which will increase the impact on the car during driving and increase the driving noise;

5. When you meet sharp objects such as nails and glass on the road, it is easy to prick the fetus, and the impact will cause internal cracks and lead to puncture.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.