What is the appropriate tire pressure for cars on highways?
2 Answers
The standard tire pressure for highways is between 2.2-2.5 bar, which may vary depending on the brand and model of the vehicle. Other factors to consider for appropriate car tire pressure include: 1. Winter: Adjust the standard tire pressure slightly higher by about 0.2 bar. 2. Summer: If the car is parked outdoors, the pressure can generally be slightly lower than the standard by about 0.1 bar to avoid tire blowouts due to high temperatures. Below is some related information about tire pressure: 1. Empty/half load: Follow the lower limit of the standard tire pressure (the tire pressure indicated on the vehicle's sticker can serve as a reference for the minimum tire pressure). 2. Full load: When fully loaded, follow the upper limit of the standard tire pressure (the maximum tire pressure indicated on the tire can serve as a reference for the theoretical maximum tire pressure).
I've found that tire pressure is indeed crucial when driving at high speeds. Based on my years of driving experience, it's best to follow the recommended values in the owner's manual, typically set between 30 to 35 PSI when cold. After driving for a while, tire temperature rises, and pressure may increase by a few PSI, so maintaining this range can prevent blowouts or poor handling. I make it a habit to use a tire pressure gauge to measure each wheel before long trips, ensuring all four tires are balanced to avoid uneven pressure that could cause the car to pull to one side. In winter, when it's colder, the pressure can be slightly higher, say 33 PSI, while in summer, it's better to set it lower, around 30 PSI, to prevent overheating and expansion. Remember not to exceed the upper limit, as it can affect braking distance and fuel consumption.
