What is the effect of under-inflated tires on vehicle performance?

Under-inflated tires can significantly impact vehicle performance in several negative ways. When tires are not adequately inflated, there is a larger contact patch with the road, which may seem beneficial at first glance. However, the primary effect is that it increases rolling resistance, leading to decreased fuel efficiency. The engine must work harder to move the vehicle, which consumes more fuel.

Additionally, under-inflated tires tend to wear unevenly and more quickly. This uneven wear can shorten the lifespan of the tires, leading to more frequent replacements, which also translates to increased costs for the vehicle owner. Not only do under-inflated tires affect fuel consumption and tire longevity, but they can also impact safety, as they may lead to reduced handling and stability while driving.

Therefore, the reasoning that under-inflated tires decrease fuel efficiency and increase wear aligns with how tire inflation directly correlates with both efficiency and longevity of tires. Maintaining proper tire pressure is essential for optimal vehicle performance.