How should you maintain tire pressure?

• A. Inflate to maximum pressure.
• B. Check only when tires look low.
• C. Inflate to a fixed value regardless of vehicle.
• D. Regularly check with a gauge; keep within vehicle's recommended range.

Answer: (D)

Maintaining proper tire pressure means regularly checking each tire with a reliable gauge and keeping it within the vehicle’s recommended range. The right pressure is set by the manufacturer to balance safe handling, even tire wear, and fuel efficiency, and it accounts for typical loads and speeds you’ll encounter.

This approach is best because tire pressure isn’t a single fixed value for all cars or all situations. Use a gauge to read the tire when it’s cold (before driving or after a long break) for an accurate measurement, then adjust to the recommended range shown on the door placard or in the owner’s manual. Keeping within that range helps the tires grip the road properly, wear evenly, and maintain good braking and steering response.

Inflating to the maximum printed on the tire is not correct because that number is the tire’s maximum limit, not the operating pressure. It can make the ride harsher, reduce traction, and cause uneven wear. Relying on how tires look is also unreliable; tires can be underinflated even when they appear normal. A fixed pressure value that ignores your specific vehicle, load, and conditions isn’t safe either.

In short, check with a gauge and stay within the vehicle’s recommended range for optimal safety and performance.