What is the standard value for tire pressure monitoring?
2 Answers
The standard value for tire pressure monitoring is between 2.3bar and 2.5bar. When the car is fully loaded (5 people), it is appropriate to adjust the tire pressure to around 2.5bar. For two people, a tire pressure of 2.3bar is normal. The standard pressure can usually be found in the vehicle's user manual, on the label near the driver's door (near the B-pillar), in the drawer next to the driver's seat, or on the fuel tank cap. When the tire pressure is below 75% of the standard value or drops by 30% of the standard value, the tire pressure monitoring system should issue an alarm. Driving is safe when the tire pressure is between 25% and 30% below the standard value listed on the vehicle's nameplate.
I've been driving for almost twenty years. I remember when I first bought my car, I specifically asked the 4S dealership about the standard tire pressure. They told me that for most sedans, it's usually around 32 to 35 psi, equivalent to 2.2 to 2.4 bar, but this isn't absolute—you should always check the label or manual in your car, typically found on the driver's door frame or fuel tank cap. I learned this the hard way—once I forgot to check, and the tire pressure was only 28 psi. While driving, I noticed the steering wheel felt heavy, fuel consumption kept increasing, and it accelerated tire wear. Since then, I've used a pressure gauge to check monthly, making sure to measure when the tires are cold. In summer, tires tend to expand, so I release some air to adjust; otherwise, driving at high speeds becomes risky. During regular maintenance, I also remind the technician to help calibrate it, ensuring driving safety and extending tire life.
