What is the normal tire pressure for a sedan?
2 Answers
The normal tire pressure for a sedan is between 2.3 and 2.5 kpa. The effects of excessive tire pressure are: 1. Reduced friction and adhesion, affecting braking performance; 2. Causes steering wheel vibration and deviation, reducing driving comfort; 3. Accelerates localized wear of the tread center pattern, shortening tire lifespan; 4. Increases vehicle vibration, indirectly affecting the lifespan of other components; 5. Overstretches the tire cords, reducing tire elasticity and increasing the load during driving. Precautions for sedan tire pressure include: 1. Regular checks; 2. Adjust according to temperature changes.
I've been driving for over a decade. Normal tire pressure for sedans generally ranges between 2.2 to 2.5 bar, depending on your car model. For example, there's a label on my rear door that says 32 psi for both front and rear tires. If the pressure is too low, tires wear out faster and fuel consumption increases. Once during a long drive, my tire pressure dropped to 1.8 bar, and I clearly felt the steering wheel become as heavy as an ox pulling a cart, with fuel consumption rising by 10%. If it's too high, exceeding 2.5 bar, the ride becomes uncomfortably bumpy. In summer when it's hot, tire pressure increases slightly, so you should add less air. I recommend using a tire pressure gauge to check monthly when the tires are cold, not after they've heated up. This habit, taught to me by tire shop professionals, ensures both safety and saves money on tires.
