Tire inflation refers to the process of filling a vehicle's tires with air to the recommended pressure. Proper inflation is crucial for safety, fuel efficiency, and tire longevity. Under-inflated tires can lead to poor handling and increased wear, while over-inflated tires may cause a harsh ride and reduced traction. To maintain optimal tire pressure, it's important to check it regularly using a tire pressure gauge. Most vehicles have a recommended pressure level, usually found on a sticker inside the driver's door or in the owner's manual. Keeping tires properly inflated helps ensure a smoother and safer driving experience.