Nitrogen vs Oxygen in Tire Inflation: How It Works #2110451 (License: Personal Use)

This schematic illustrates the molecular behavior inside a tire: smaller oxygen molecules escape more readily through rubber pores, while larger nitrogen molecules remain trapped longer. The result is slower pressure loss and more consistent tire performance with nitrogen inflation. Arrows indicate directional movement of gases across the tire wall.

Used on automotive maintenance, tire care, or vehicle performance webpages to explain the science behind nitrogen-filled tires; targets users researching tire longevity, fuel efficiency, or racing/enthusiast applications.