There is no strict rule for how often passenger car tires should be inflated, but generally, they should be inflated once every one to two months. Always keep an electric air pump and a tire pressure gauge in the car: It is impossible to judge the inflation pressure of tires just by looking at them. It is best to use precise pressure measurement tools for accurate readings. Tire pressure is a very important indicator. Whether the tire pressure is too high or too low, it can cause significant damage to the tire's lifespan. Precautions for inflating tires: Always pay attention to safety when inflating tires. Use a pressure gauge to check the pressure frequently to prevent over-inflation, which can cause the tire to burst. After stopping the vehicle, wait for the tires to cool down before inflating, as driving increases tire temperature, which affects the pressure. Check the valve stem. If the valve and valve core are not properly aligned, have protrusions, depressions, or other defects, it will be inconvenient to inflate or measure the pressure. Ensure cleanliness when inflating; avoid any moisture or oil, as they can deteriorate the inner tube rubber. Do not exceed the standard pressure too much, and avoid over-inflating the tires just because they have been left uninflated for a long time. Exceeding the standard pressure excessively can stretch the cords too much, reducing their strength and affecting the tire's lifespan. Before inflating, clean the dust off the valve stem, ensure the valve core is not loose, then apply soapy water to the valve stem to check for leaks (small bubbles will form if there is a leak), and tighten the cap to prevent dirt from entering the valve stem.
