Underinflated tires waste gas. How much gas? The Department of Transportation estimates that 5 million gallons of fuel a day are wasted due to low tire pressure. That's more than 2 billion gallons per year!
OK, OK, you get the point. Inflating your tires to your car’s specified pressure is important. So make it a habit to check and refill your tires once a month. And remember, you can't tell if a tire is underinflated just by looking at it. If it actually looks underinflated, it is way underinflated. Learn more