What is the appropriate tire pressure in summer? Is it higher or lower?

The tire pressure between 2.2 and 2.4 bar is more suitable in summer, but it is lower.

The temperature in summer is relatively high, so the tire will heat up after driving for a period of time, and the gas volume inside the tire will become larger. So the tire pressure in summer is about 2.4bar or 2.5bar, which is very important for tires. There is a reasonable tire pressure range. Too low or too high tire pressure is unacceptable. If the air pressure is too high, the contact area between the tire and the ground will become smaller and the grip of the tire will become worse. I suggest you always check the tire pressure when you use the car. Some drivers will spend money to fill their tires with nitrogen, but it is totally unnecessary. If nitrogen is filled, it is impossible to completely purify the air in the tire, so the nitrogen filled will still be mixed with the air. When buying new tires, you must also see the production date clearly. The shelf life of idle tires is three years. Don't buy it for more than three years.

If the tire pressure is too high, the driving comfort of the car will be reduced, the contact area between the tire and the ground will be reduced, and the handling of the car will also be reduced. The tire pressure is low, so when driving at high speed, the tire temperature plus the external environment temperature will make the tire pressure higher than the normal tire pressure. So the overall tire pressure will be the same as in winter. If we pursue the same tire pressure in summer and winter, obviously, when driving at high speed in summer, the actual tire pressure will be much higher than that in winter, which is actually not conducive to tire protection.

Of course, different models have different requirements for tires, and even different brands may have different tire pressure settings. Some models are heavier and need tires similar to explosion-proof tires, so the tire pressure will be different. The tire pressure of most tires should be between 2.6 and 2.8 in winter and 2.3 and 2.5 in summer. In normal times, it is no problem to test according to such tire pressure value. If the tire pressure is deviated, it can be adjusted by pressurizing or depressurizing. The above is the answer to the question about how much tire pressure is appropriate, higher or lower in summer.