Should the front and rear tire pressures be the same?
2 Answers
The front and rear tire pressures cannot be exactly the same, but it is advisable to keep the tire pressures on the left and right sides consistent, allowing for a margin of error of 0.1 bar. Taking an ordinary family car as an example, when typically carrying two passengers, the standard tire pressure for the front wheels is 2.3 bar, and the standard tire pressure for the rear wheels is also 2.3 bar. When the load increases, such as in a fully loaded situation, the tire pressure can be appropriately increased. The front tire pressure can be adjusted to 2.4 bar, and the rear tire pressure can be adjusted to 2.6 bar. The standard tire pressure for each car can be found near the fuel filler cap, with the first row in the tire pressure chart indicating the standard tire pressure.
Having driven for decades, I've learned that front and rear tire pressures shouldn't be the same. Each car has different weight distribution, with the engine up front, so front tires usually need higher pressure—about 10-20 kPa more, depending on the vehicle's manual. My own car has a slight pressure difference between front and rear, which helps reduce uneven tire wear and prevents premature cracking or bubbling. If set exactly the same, the front tires, bearing more weight, are prone to bulging or leaks and can feel unstable at high speeds. I recommend checking cold tire pressure monthly with a reliable gauge, and don't forget to adjust the spare tire's pressure too. For safety, balanced tire pressure shortens braking distance and saves fuel—why not do it? I always remind beginners not to slack off; pay attention to these details.
