What does it mean if your vehicle’s tires are under-inflated?

Answer: B — Increased tire wear and decreased fuel efficiency

When vehicle tires are under-inflated, it leads to increased tire wear and decreased fuel efficiency. This occurs because under-inflation causes more of the tire's surface to make contact with the road, leading to greater friction and heat, which in turn accelerates the tire's degradation. Additionally, under-inflated tires require more energy to roll, which means the engine has to work harder, consuming more fuel and reducing overall efficiency. Properly inflated tires ensure optimal performance, enhance fuel economy, and extend tire life, while also promoting safer driving conditions. Thus, maintaining the correct tire pressure is crucial for both vehicle performance and safety.