What is the appropriate tire pressure for Nissan Sunny?
1 Answers
The standard tire pressure for Nissan Sunny is 2.4-2.5 bar. Tire pressure may vary depending on different brands and models. Factors such as seasons and load conditions also affect it. The specific recommended pressure can usually be found on the fuel tank cap, the side of the driver's door, or in the user manual. Tire pressure is an indicator of a vehicle's load capacity. The load capacity of a car depends on the tire pressure. According to the relationship between the tire load index, tire pressure, and load capacity, higher tire pressure increases load capacity, while lower pressure reduces it. Generally, the lower limit of the standard tire pressure is sufficient. For example, the lower limit for standard tires is 2.4 bar. If the car is often parked outdoors, the tire pressure can be about 0.1 bar lower than the standard to prevent tire blowouts due to high temperatures. 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 significantly affects the rolling resistance coefficient. When the pressure decreases, the rolling resistance coefficient increases rapidly because lower tire pressure causes greater tire deformation and increased hysteresis loss. Therefore, proper tire pressure ensures good vehicle performance.
