How much oil does the average passenger car tire hold?

The average passenger car tire typically holds around two to two and a half gallons of air when fully inflated. The choice indicating two and a half gallons aligns with the amount of air required for standard passenger vehicles, reflecting nominal tire capacities for optimal performance. Given that tires are designed to hold specific volumes of air pressure for safety and efficiency reasons, understanding this volume helps with proper tire maintenance, inflation practices, and awareness of tire health. Thus, recognizing that two and a half gallons is actually a reasonable estimate for tire capacity supports safe driving conditions and optimal tire performance.