What Causes a Slow Tire Deflation?

[GabrielDella]

Here are the reasons why car tires slowly lose air: 1. When a car is frequently driven, the tires are in motion, and the tire and rim are completely sealed. If the car is not driven for a long time, the tire and rim may harden, leading to slow air leakage. 2. During driving, the temperature of the tires increases, and moving tires experience multi-directional forces. In contrast, parked car tires bear force on a single side, always in contact with the ground on one surface, which prevents pressure dispersion and results in air leakage. Here are some recommendations for car tire usage: 1. To ensure safety, always replace the valve stem when installing tubeless tires. 2. After installing the tire, use a brush dipped in soapy water to scrub the valve core, valve base, and the contact area between the tire bead and rim flange to check for air bubbles, which helps inspect the rim's airtightness. 3. Inflate the tires according to specifications and regularly check the air pressure. If the pressure is too low, investigate the cause. For example, check for punctures, cuts, or repair issues on the tread, especially whether the valve stem is aged or cracked.