What is the normal tire pressure for the Regal 552T Elite model?

[OHazel]

The tire pressure for the new Buick Regal is generally between 2.3 and 2.5 bar. If the tires have been used for more than 4 years, the tire pressure should not be too high; 2.35 bar is sufficient. The relationship between tire pressure and load capacity: Tire pressure is an indicator of a vehicle's load capacity. The load capacity of a vehicle 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, a tire with a load index of 80 has a load capacity of 300 kg when the pressure is 0.15 MPa, but when the pressure increases to 0.25 MPa, the load capacity rises to 450 kg. This clearly shows the significant impact of tire pressure on a vehicle's load capacity. The relationship between tire pressure and vehicle performance: When a vehicle is driving at a constant speed on a level road, it must overcome rolling resistance from the ground and air resistance. Tire pressure greatly affects the rolling resistance coefficient. When the pressure decreases, the rolling resistance coefficient increases rapidly because lower tire pressure causes greater deformation of the rolling tire, leading to increased hysteresis loss. Therefore, appropriate tire pressure ensures good vehicle performance.