What is the appropriate tire pressure for cars in summer?
3 Answers
In summer, the appropriate tire pressure is around 2.3 bar. The standard tire pressure generally ranges between 2.3-2.5 bar. Due to the principle of thermal expansion and contraction, the tire pressure in summer should be set at the lower limit of the standard tire pressure, so a tire pressure of around 2.3 bar is more suitable in summer. Hazards of overinflated tires: Excessive tire pressure reduces the friction and adhesion of the tires, affecting braking performance, causing steering wheel vibration and deviation, and reducing driving comfort. It also accelerates wear on the central tread pattern, shortening tire life, increasing body vibration, and indirectly affecting the lifespan of other components. Overinflation also causes excessive stretching and deformation of the tire cords, reducing the elasticity of the tire body, increasing the load on the car while driving, and decreasing puncture resistance. When encountering sharp objects on the road, the tire is more likely to be punctured, leading to internal cracks and blowouts, resulting in a tire burst. Hazards of underinflated tires: Tire pressure significantly below the standard level increases the friction coefficient between the tire and the road surface, leading to higher fuel consumption and causing heavy steering and deviation, which are detrimental to driving safety. Insufficient tire pressure increases the movement of various parts of the tire, causing excessive rolling and abnormal heat buildup, reducing the functionality of the cords and rubber, leading to delamination or cord breakage. Excessive friction between the tire and the rim can cause damage and abnormal wear to the bead area. The friction between the tire and the ground increases exponentially, causing a sharp rise in tire temperature, softening the tire, and drastically reducing its strength. High-speed driving under these conditions can also lead to a tire burst.
In summer, I slightly increase my car's tire pressure, usually about 0.1 to 0.2 bar higher than the manufacturer's recommended value. Because air expands in high temperatures, if the tire pressure is too low, the tires tend to soften and wear out quickly, also consuming more fuel; if it's too high, it might lead to a blowout and damage the car. Each time, I refer to the standard value on the sticker on the door frame, for example, if the normal pressure is 2.3 bar, I increase it to around 2.5 in summer. It's best to check the tire pressure in the morning or after the car has been parked for more than three hours, as the measurement is more accurate when the car is cold. Don't forget to use a tire pressure gauge to check it yourself or visit a repair shop for regular checks. If I'm going on a long-distance drive, I adjust the pressure in advance to avoid unexpected troubles. Remember, in summer, don't exceed the maximum tire pressure—safety first! Here's a little tip: proper tire pressure can also improve the car's handling, making turns more stable.
As a seasoned driver, I recommend everyone to pay attention to tire pressure adjustment as soon as summer arrives. When temperatures rise, tire pressure naturally increases, so maintaining it slightly higher is safer—typically 0.1-0.2 bar above normal is sufficient. Otherwise, insufficient tire pressure during high temperatures and high-speed driving can reduce grip, potentially causing skidding during sharp turns; excessive pressure, on the other hand, increases the risk of a blowout. I make it a habit to check my tire pressure with a gauge at the beginning of each month, measuring when the car is cold. It's a simple process: buy a portable tire pressure gauge and keep it in the glove compartment, then take a few minutes to check during a break. This habit has also helped me save on fuel costs, as reduced tire wear extends their lifespan. If you're unsure, consult your vehicle manual or ask a mechanic—don’t rely on guesswork. Paying attention to changes in tire noise while driving is also a simple warning sign.
