天冷了可以调低胎压吗？
Can you lower the tire pressure when it's cold?
首先天冷的时候调低胎压是不对的，之所以有这个说法，是在雪地越野和沙漠越野的时候采用。因为降低轮胎的胎压，轮胎与地面接触面积就多，可以更好的在雪地和沙漠脱困和行驶。但是对于正常行驶的时候，天冷的时候是不能调低胎压，反而应该调高。因为物理上有个热胀冷缩的原理，冬季气温降低，轮胎内的气体相比夏天的时候，虽然量是一样的，但是轮胎气压更低，所以应该要调高气压。
First of all, it is wrong to lower the tire pressure when it is cold. The reason for this statement is that it is used in off-road snow and desert. Because the tire pressure is reduced, the contact area between the tire and the ground is more, which can better get rid of difficulties and drive in snow and desert. However, for normal driving, the tire pressure cannot be lowered when it is cold, but should be increased. Because there is a physical principle of thermal expansion and cold contraction, the temperature decreases in winter, and the amount of gas in the tire is the same compared with that in summer, but the tire pressure is lower, so the pressure should be increased.
因为天冷了胎压本来就比夏天低，还调低胎压，轮胎就会过瘪。虽然抓地力好了，但是也增加了油耗。更严重的是，因为长时间的低压行驶，轮胎的负荷增加，胎壁就容易老化，增加爆胎的风险。所以冬天应该把胎压升高，一般是按照说明书上的标准胎压，升高0.1~0.2Bar。另外每款车的胎压是不一样的，不是大家通常说的2.5bar，也不是什么区间，在说明书上有严格的标注。说明书那么厚很少有人看，其实每辆车的车门侧都会有一个标签，有的是在油箱盖上，自己可以找找。上边标注的都是正常温度时候的胎压，所以夏天调低0.1~0.2bar，冬季调高就行。
Because it's cold, the tire pressure is already lower than that in summer. If you lower the tire pressure, the tire will be too flat. Although the grip is good, it also increases fuel consumption. More seriously, because of long-term low-pressure driving, the tire load increases, and the tire wall is easy to age, increasing the risk of tire burst. Therefore, the tire pressure should be increased in winter, generally by 0.1 ~ 0.2bar according to the standard tire pressure in the manual. In addition, the tire pressure of each car is different. It's not the usual 2.5bar, nor is it a range. It's strictly marked in the manual. The manual is so thick that few people read it. In fact, there is a label on the door side of each car. Some are on the fuel tank cover. You can find it yourself. The tire pressure marked above is the tire pressure at normal temperature, so it can be reduced by 0.1 ~ 0.2bar in summer and increased in winter.
有的车因为前后使用的轮胎不同，所需的压力不同。比如冷车的时候，通常的乘坐人数只有两个人和一个包，或者只有一个人，那么前后两个的胎压都是1.9bar。如果经常满载，或者要满载行驶很长的距离，就要调高胎压，前2.1，后2.8，因为后备箱还有东西，后座的人多，后轮胎的压力就更大。
Some cars require different pressures because the front and rear tires are different. For example, when the car is cold, the usual number of passengers is only two people and one bag, or only one person, so the tire pressure of the front and rear is 1.9bar. If you often drive with a full load, or if you want to drive a long distance with a full load, you need to increase the tire pressure. The front 2.1 and rear 2.8, because there are still things in the trunk and there are many people in the back seat, the pressure of the rear tire is even greater.
济南路通悦宝汽车服务有限公司是一家集进口国产高端轿车，越野车、城市SUV，诊断，维修与保养及配件供应与一体的汽车售后服务中心，本中心拥有高端车专用检测设备，主营：进口国产 宝马、奔驰、大众、奥迪、沃尔沃、路虎等高端车诊断维修与保养服务(德系专修）。本中心以顾客至上，诚信为本做为企业的经营理念，以质量求生存，以信誉求发展，依靠技术优势和科学管理为您提供的服务。本单位员工均持证上岗，经过培训，确保每台车辆维修质量如新，至善至美。原产配件 ，优质服务,24小时救援 陆通汽服 爱车之友!
Jinan lutongyuebao Automobile Service Co., Ltd. is an automobile after-sales service center integrating imported domestic high-end cars, off-road vehicles, urban SUVs, diagnosis, repair and maintenance and parts supply. The center has special testing equipment for high-end vehicles, mainly engaged in imported domestic BMW, Mercedes Benz, Volkswagen, Audi, Volvo Diagnosis, repair and maintenance services for Land Rover and other high-end vehicles (German special repair). The center takes customer first and integrity-based as the business philosophy of the enterprise, strives for survival with quality, strives for development with reputation, and provides you with all-round services relying on technical advantages and scientific management. All employees of the unit work with certificates and receive training to ensure that the maintenance quality of each vehicle is as good as new and perfect. Original parts, high-quality service, 24-hour rescue, Lutong auto service, friends of cars!
济南路通汽车养护维修站
Jinan Lutong automobile maintenance station
联系人：李经理
Contact: Manager Li
地址 ：济南全福立交桥东100米路北(工业北路301号)通运汽配城4排15、16号，
Address: No. 15 and 16, row 4, Tongyun Auto Parts City, No. 301, Gongye North Road, 100m east of Quanfu overpass, Jinan,