What is the most important factor influencing tire life?

Tire pressure is indeed the most critical factor influencing tire life. Proper tire pressure ensures that the tires maintain optimal contact with the road surface, which is crucial for effective traction, handling, and braking. Under-inflated tires can lead to increased tire wear, overheating, and more frequent punctures, while over-inflated tires can result in a harder ride and less grip, potentially leading to uneven tread wear.

Maintaining the correct tire pressure not only extends the lifespan of the tires but also contributes to overall vehicle safety and fuel efficiency. When tires are inflated to the recommended levels, they perform as designed, reducing the likelihood of premature wear and enhancing the driving experience.

While alignment, tread depth, and load capacity also play significant roles in tire performance and longevity, they are secondary to the foundational requirement of maintaining the correct tire pressure. For instance, improper alignment can lead to uneven wear, but if the tires are not at the correct pressure, their lifespan is still compromised regardless of their alignment status.