What maintenance function most significantly affects tire service life?

The maintenance function that most significantly affects tire service life is ensuring proper inflation. Tire inflation is crucial because under-inflated tires can lead to excessive wear on the edges, overheating, and ultimately, a greater risk of blowouts. Conversely, over-inflation can cause the tire to wear in the center and reduce the contact patch with the ground, affecting traction and increasing the likelihood of damage.

Properly inflated tires ensure optimal performance, improve fuel efficiency, and enhance safety, while also maximizing the lifespan of the tire. Therefore, maintaining the correct tire pressure is essential for ensuring that tires wear evenly and can perform effectively throughout their intended service life.