What is the recommended tire pressure in summer and winter?
3 Answers
Summer tire pressure normal range: Generally, the lower limit of the standard tire pressure for car tires is acceptable. For example, the lower limit for standard tires is 2.4 bar. If the car is often parked outdoors, the tire pressure can usually be about 0.1 bar lower than the standard to avoid tire blowouts due to high temperatures. Winter tire pressure normal range: In winter, the tire pressure should be based on the standard tire pressure of the car tire, and can be appropriately increased by about 0.2 bar. Standard tire pressure for car tires: According to the regulations and requirements of the international GBT2978-2008 standard, the tire pressure for different tires is as follows: standard tires: 2.4-2.5 bar; reinforced tires: 2.8-2.9 bar; maximum pressure: should not exceed 3.5 bar.
I've been driving a small car for five or six years. In summer, I usually adjust the tire pressure to around 2.3 bar because the gas inside the tires expands significantly in hot weather, and too high pressure can easily lead to a blowout. I remember last summer before a trip, I forgot to check, and the car was bumping badly on the highway—I regretted it so much. In winter, I increase it to 2.5 bar; as the temperature drops, the gas contracts, and raising the tire pressure a bit increases contact force with the icy road, making the drive much more stable. The exact values should be based on the sticker on the car door or the manual's recommendation—my car indicates 2.2-2.5 bar. It's a good habit to use a tire pressure gauge to check once a month, and you can get free air refills at service stations. Pay special attention during seasonal transitions; for example, before winter sets in, I always check to ensure a safe journey for the whole family. Maintaining this practice long-term not only extends tire life but also saves fuel and hassle.
As someone who loves delving into automotive principles, I have some insights into tire pressure changes. In summer, with more hot air, the air expands, naturally increasing tire pressure, so I set it 0.1-0.2 bar lower than the standard value. For example, if the manual states 2.4 bar, I adjust it to 2.3 bar to prevent overheating and blowouts. Conversely, in winter, with more cold weather, the gas contracts quickly, causing tire pressure to drop, so I increase it to 2.5-2.6 bar to enhance grip. For every 10-degree temperature difference, tire pressure changes by about 0.1 bar. The standard range is mostly between 2.2-2.5 bar, depending on the vehicle model. I have a real-time tire pressure monitor installed in my car for more accurate data. This adjustment is based on thermodynamics, simple and practical, and also reduces tire wear, making driving more reassuring.
