What is the suitable tire pressure for Focus?

[DiIsabella]

The recommended tire pressure for Focus is generally between 2.3-2.5 standard atmospheres, with a normal tire pressure of around 2.4. Both overinflation and underinflation can cause uneven tire wear. Meaning of tire pressure: Tire pressure is an indicator of a vehicle's load capacity. The load capacity of a vehicle depends on the level of tire pressure. According to the relationship between the tire's load index, tire pressure, and load capacity, higher tire pressure results in greater load capacity, while lower pressure reduces load capacity. For example, a tire with a load index of 80 has a load capacity of 300 kg at 0.15 MPa, which increases to 450 kg at 0.25 MPa. This demonstrates the significant impact of tire pressure on a vehicle's load capacity. Effects of tire pressure: When a car 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 tire pressure decreases, the rolling resistance coefficient increases rapidly because the deformation of the rolling tire becomes larger, leading to increased hysteresis loss. Therefore, appropriate tire pressure ensures good driving performance of the vehicle.