
The optimal operating temperature for normal car tires ranges between 90 and 110 degrees Celsius. Here are the relevant details: 1. Inside the tire: Throughout the year, the internal operating temperature of tires under high-speed conditions ranges between 60-130 degrees. Tires are equipped with insulating sleeves that generally maintain the temperature within a controllable range. 2. Bias-ply tires: The maximum temperature at which they can operate normally while ensuring sufficient durability is typically 121.1°C, whereas radial tires must be limited to 93.3°C or lower. 3. Tire pressure standards: These vary depending on the type of tire and the vehicle model. Different vehicle models have varying weights, heights, and tire sizes, which require different tire pressures.

When commuting by car, I always pay attention to the changes in tire temperature. Under normal city driving conditions, the tire temperature usually ranges between 40 to 60 degrees Celsius, and it can rise to around 70 degrees when driving on the highway. Recently, with the summer heat, the tires feel scorching hot when parked under the sun, probably exceeding 50 degrees. This temperature range is quite normal, as both tire friction and hot weather can cause the temperature to rise. However, if it exceeds 90 degrees, it becomes dangerous and increases the risk of a blowout. That's why I now check the tire pressure every one or two months, keeping it around 2.3 when the tires are cold. After driving for a while, I stop to feel the tire temperature, especially when traveling with family, paying extra attention to safety.

Frequently engaged in long-distance transportation, I am particularly sensitive to tire temperature. Under normal driving conditions, tire temperature fluctuates around 50 degrees Celsius. During summer when road surface temperatures are high, tire temperature can rise to around 70 degrees. The tire pressure for trucks is generally maintained at 4.8 kg. If the tire pressure is abnormal, such as being too low, the sidewalls of the tire can twist and deform, potentially causing the temperature to suddenly spike to over 80 degrees, which is very dangerous. I take a break to inspect every 300 kilometers, quickly touching the side of the tire with the back of my hand. If it feels warm but not scalding, it's still okay. The tread depth of the tire is also crucial, as severe wear can make the tire more prone to temperature increases.

Having seen numerous tire issues in the workshop, the normal operating temperature range of 50 to 70 degrees Celsius is considered safe. New vehicles during the break-in period may exhibit slightly higher temperatures, but it should not exceed 85 degrees. I've observed that tire pressure has a significant impact - for every 0.5 kg below the standard pressure, the temperature rises by approximately 15 degrees. It's advisable for car owners to keep a tire pressure gauge handy and measure when the vehicle is cold in the morning for the most accurate reading. Signs of excessive temperature include a rubber smell, abnormal shoulder wear, or blue discoloration on the tread. During seasonal maintenance, remember to have the technician check both tire pressure and alignment, as both factors directly affect tire temperature.


