Is There a Relationship Between Tire Pressure and Vehicle Weight?
2 Answers
Vehicle tire pressure is primarily related to the vehicle itself, with specific tire pressure determined based on the vehicle's weight and structure. This information is usually indicated on the fuel tank cap or the side of the driver's door. Tire pressure also has a certain relationship with the tires. Generally, vehicles specify the performance requirements for tires, which can be found in the user manual or by consulting a 4S dealership. Below is relevant information about tire pressure: 1. Strictly speaking, tire pressure refers to the air pressure inside the tire: In terms of vehicle maintenance, the engine is the heart of the car, and its damage can lead to the end of the vehicle's life. Similarly, tire pressure is the blood pressure of the car, and its level plays a crucial role in the vehicle's performance and power. 2. Tire pressure is an important factor affecting the service life and economy of tires: Improper selection of tire pressure can cause power cycling, leading to increased tire wear and affecting service life. Considering the impact on power performance, it is essential to choose the appropriate tire pressure to extend tire life and improve economy.
I do think tire pressure is related to vehicle weight. As someone who frequently drives long distances, I've experienced it firsthand – once when going camping with the car packed full of tents and boxes, the increased weight made the steering wheel noticeably heavier and the car harder to control. Later, I checked the tire pressure and found it was too low, causing severe tire deformation, accelerated wear, and increased fuel consumption. The unloaded and fully loaded weights of a vehicle are different, and tires need appropriate pressure to support them. The recommended values usually posted on the door frame already take weight into account. When unloaded, I keep the tire pressure at 30 psi, but when fully loaded, I increase it to 33-35 psi, making sure not to exceed the maximum limit. Developing a habit of checking tire pressure monthly with a gauge is simple and cost-effective. Neglecting this not only increases the risk of a blowout but also damages tires over time, and replacing them is expensive. If the car doesn't feel right when driving, it's time to think about tire pressure.
