What is the temperature resistance of tires?

2 Answers
LeBrady
07/24/25 9:24am
Car tires' temperature resistance varies depending on their grade, with different grades offering varying levels of high-temperature resistance. Under normal conditions, tires can withstand temperatures up to approximately 180-200 degrees Celsius, while their low-temperature resistance is at least -40 degrees Celsius. Related information: 1. Avoid overheating tires: During regular use, it's important to prevent tires from overheating, as excessive heat can turn a wet tire into an old, dry one. Additionally, pay attention to driving speed. The faster a tire travels, the quicker it generates heat, leading to higher temperature rises and increased impact forces. Therefore, at high speeds and temperatures, tread wear accelerates, so it's advisable to choose a reasonable speed. 2. Reduce inflation pressure: In summer, road surface temperatures often exceed 70°C. Cars driving for extended periods in hot summer conditions, especially those with damaged or weak spots in their tires, are prone to blowouts due to excessive tire pressure. Affected by temperature, the gas inside tires expands, increasing tire pressure from 2.3 kg to over 3 kg. To maintain proper tire pressure, it is recommended to reduce the inflation pressure by 10%.
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DelGideon
08/11/25 4:48am
As an auto enthusiast who often ponders tire materials, temperature resistance is crucial for tires. The heat tolerance of tires isn't a single value; generally, passenger car tires operate normally between -40°C and around +120°C. Summer tires can withstand higher temperatures, up to 140°C, while winter tires perform better in low temperatures. Rubber softens at high temperatures, leading to accelerated wear, and in extreme heat, it may even expand and cause a blowout. Therefore, in summer, it's important to avoid prolonged high-speed driving to prevent overheating and to regularly check tire pressure to avoid excessive pressure. When choosing tires, I always recommend looking at the T-rating, which indicates the temperature resistance grade, such as Grade A for withstanding temperatures above 190 km/h. For daily use, staying within the safe range is the most prudent approach.
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