What is the proper tire pressure for car tires?

2 Answers
StJaxon
09/01/25 6:05am
Car tires should have the following appropriate air pressure: front tires should be inflated to 2.2-2.3 bar when unloaded and 2.4-2.5 bar when fully loaded; rear tires should be inflated to 2.4-2.5 bar when unloaded and 2.6-2.8 bar when fully loaded. Introduction to tire pressure: Tire pressure, strictly speaking, refers to the air pressure inside the tire. In car maintenance, the engine is the heart of the car, and its damage will lead to the end of the car's life. Similarly, tire pressure is like the blood pressure of the car, and its level plays a crucial role in the car's performance and power. The relationship between tire pressure and load capacity: Tire pressure is an indicator of a car's load capacity. The load capacity of a car depends on the tire pressure. According to the relationship between the tire's load index, tire pressure, and load capacity, the higher the tire pressure, the greater the load capacity; the lower the pressure, the smaller the load capacity. For example, for a tire with a load index of 80, when the pressure is 0.15 MPa, the load capacity is 300 kg, and when the pressure is 0.25 MPa, the load capacity increases to 450 kg.
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DeRebecca
09/14/25 2:01am
I've been driving long distances for years, and tire inflation is crucial. The standard pressure usually ranges between 32 to 35 pounds per square inch (PSI), but it really depends on your vehicle. The most accurate information can be found on the label by the door frame or in the user manual. Never guess the numbers—if the pressure is too low, the tire can overheat and deform, increasing the risk of a blowout; if it's too high, the center of the tread wears out faster, making the ride bumpy, unstable, and reducing tire lifespan. Once, I neglected this and drove with underinflated tires—the wheels overheated and triggered a warning on the highway. I had to pull over immediately and check, which gave me quite a scare. Now, I regularly check the pressure when the tires are cold using a tire gauge, especially before summer when temperatures spike and the air inside expands, requiring adjustment. Don’t take safety lightly—monthly checks are ideal to ensure a safe and durable drive.
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