Is It Normal for the Four Tires to Have Different Tire Pressures?

[StJulia]

Generally, a difference in tire pressure within 0.1 bar among the four tires is considered normal. Variations in tire pressure monitoring errors and different vehicle load conditions can temporarily cause differences in tire pressure. Typically, the rear tires have slightly higher pressure than the front tires. If the difference exceeds 0.2 bar, adjustments are necessary to prevent the vehicle from pulling to one side. Below is relevant information: 1. According to the international GBT2978-2008 standard: standard tires should have a pressure of 2.2-2.5 bar, while reinforced tires should have 2.8-2.9 bar. The manufacturer's recommended tire pressure serves as the standard. These recommendations can usually be found in the vehicle's user manual, on the label near the driver's door (B-pillar), in the drawer next to the driver's seat, or on the fuel tank cap. 2. If you notice a significant inconsistency in tire pressure while driving at high speed, pull over as soon as possible. Allow the tires to cool naturally—do not release air or splash cold water on hot tires. Once the tires have cooled, inspect each one individually.

[SanMorgan]

I think it's quite common to have different tire pressures among the four tires, but you must stay vigilant. For instance, slight fluctuations in tire pressure due to temperature changes or driving are acceptable, with a difference of 0.1-0.2 bar being tolerable. However, a larger discrepancy can be dangerous, as it may cause the car to pull to one side, especially reducing stability during high-speed turns. I personally experienced this during my daily commute—uneven tire pressure made the car wobble noticeably, and upon checking, I found one tire was slowly leaking air, which I hadn’t noticed before. Since then, I’ve made it a habit to check the tire pressure monthly using an affordable tire gauge, inflating them to the recommended values on the door label to ensure all tires have consistent pressure. This not only helps avoid accidents but also promotes even tire wear, improves fuel efficiency, and makes driving more stable and comfortable. Developing this habit takes just a few minutes but is incredibly important for overall driving safety.

[AxelLynn]

As a commuting office worker, I pay close attention to car maintenance. Is it normal for the four tires to have different pressures? Minor differences are understandable, such as slight variations caused by different positions of front and rear wheels; but overall, the range should be well controlled, otherwise there will be many problems. For example, uneven wear can cause a tire to wear out prematurely, leading to unnecessary expenses for replacement; handling performance will also decline, increasing the risk of skidding on slippery roads. I remember once during a business trip, I didn't notice the low pressure in one tire, which resulted in a sharp increase in fuel consumption and nearly caused an accident. Now, I make time every week to check the tire pressure, ensuring they are all inflated close to the nominal value. Maintaining consistent tire pressure is not just about safety; it's also good for the wallet, reducing repair costs and extending tire life by a couple of years.

[McEmma]

Having driven for many years, I know tires are the foundation of a vehicle. Uneven pressure across all four tires? That's not normal and should be addressed promptly. Minor fluctuations are acceptable, such as a difference within 0.3 bar due to temperature changes; but if the discrepancy is significant, it's often caused by slow leaks or aging valve stems. The consequences are severe—not only does handling deteriorate, making the car prone to losing control in rain, but prolonged neglect also accelerates tire wear, potentially doubling replacement costs. During every maintenance check, I emphasize pressure testing and inflation adjustments, which can easily be corrected with simple tools. Never wait until the dashboard warning light comes on—safety starts with the small details.