What is the general standard for four-wheel tire pressure?
2 Answers
The general standard for four-wheel tire pressure is 2.5kg for the front wheels and 2.7kg for the rear wheels. In summer, it is 2.3kg for the front wheels and 2.5kg for the rear wheels. Before traveling, observe the tire condition: Radial tires—commonly known as low-pressure tires—are normal as long as the flatness is not too low. If you feel strong elasticity when stepping on them with your foot and they are not too soft, they are normal. High-pressure tires—bias-ply tires with inner tubes—are normal if the shoulder area does not protrude when viewed from the front (commonly referred to as 'not bulging') and the contact area with the ground appears similar to usual when viewed from the side. Pay attention to the sound of tire friction with the ground: While driving, listen to the sound of tire friction with the ground, feel the cushioning force when passing over uneven roads, and notice if there are any changes in acceleration when accelerating compared to usual. These are all experiences accumulated over time.
After driving for many years, I've found that the standard tire pressure isn't one-size-fits-all—it depends on the specific vehicle model. Generally, the recommended tire pressure for sedans is between 32 to 35 PSI, approximately 2.2 to 2.4 bar, but this can vary. New cars usually have a sticker on the driver's door frame or fuel cap indicating the exact value, which I always check before inflating. Too low pressure can cause uneven tire wear, increased fuel consumption, and even blowouts at high speeds; too high pressure makes the ride uncomfortably stiff. I make it a habit to check monthly with a simple pressure gauge, adjusting slightly—lower in summer and higher in winter—to maintain optimal conditions and extend tire life. Through experience, I've learned that small oversights can lead to big troubles, so it's worth taking five minutes to check rather than cutting corners.
