The normal range for car tire pressure is between 230 and 250 kilopascals (kPa). Generally, the manufacturer's recommended values can be found in the vehicle's user manual, on the label next to the driver's door, in the drawer near the driver's seat, or on the fuel tank cap. Precautions for car tires: Do not use repaired old tires. Once a tire has been repaired, its load-bearing capacity significantly decreases, and there is a risk of the repaired area rupturing again, especially in summer when tire pressure tends to rise. Repaired tires become very fragile during long-distance driving. Use nitrogen to inflate tires. Nitrogen inflation can reduce the occurrence of blowouts. From a gas efficiency perspective, nitrogen is an inert gas with stable thermal expansion properties, making it less prone to explosions, thereby greatly lowering the risk of blowouts. It also helps inhibit the spontaneous combustion of gases released by rubber tires, preventing self-ignition. Reasons for insufficient car tire pressure: Leakage from the tire or valve stem, which requires inspection at a tire shop. Air leakage caused by punctures from nails or other hard objects while driving, leading to insufficient pressure. The most critical factor in tire maintenance is proper inflation. Neither the tire nor the inner tube can be completely airtight. To avoid the dangers of underinflation, the air lost from the tire must be replenished.
