How much tire pressure can tires lose every month?

Tires can lose about one pound per square inch (PSI) of pressure each month due to natural air permeation through the rubber. This gradual loss of pressure is a normal occurrence, as all tires are designed to be somewhat porous, allowing air to escape over time. Maintaining the correct tire pressure is critical for safe driving, as under-inflated tires can lead to decreased fuel efficiency, poor handling, and increased tire wear. Regularly checking and adjusting tire pressure each month helps to ensure that tires remain within the optimal pressure range, contributing to both vehicle safety and efficiency.