What is the standard tire pressure for cars?
2 Answers
The standard tire pressure for cars is between 2.4 and 2.5 bar. Tire pressure significantly affects vehicle performance and power. The impacts of overinflation are: 1. Reduced tire friction and adhesion, affecting braking performance; 2. Steering wheel vibration and deviation, reducing driving comfort; 3. Accelerated wear on the central tread pattern, shortening tire lifespan; 4. Increased body vibration, affecting the longevity of other components. The effects of underinflation include: 1. Increased friction coefficient with the road surface; 2. Heavier steering wheel feel and tendency to deviate; 3. Increased movement of tire components, causing abnormal heat generation due to excessive rolling.
I remember when I first started driving, I always thought it didn't matter if the tires were a bit flat. Later, after reading the manual, I realized how crucial tire pressure is. My car recommends 34 PSI, and I check it monthly with a tire pressure gauge. If the pressure is too low, the tires wear out faster, fuel consumption spikes, and the car feels sluggish; if it's too high, the ride becomes bumpy, braking distance increases, and it's unsafe. I also noticed that temperature changes have a big impact—pressure drops in winter, so I have to top it up in time. I recommend using the free air pumps at gas stations or spending a few dozen bucks on a portable tire pressure gauge to keep in the car. Maintaining this habit has extended my tire life by over two years, saving money and giving me peace of mind.
