You could have the best tires in the world on your vehicle, but it wouldn't matter if the air pressure inside them was less than perfect. Tire load capacity, durability, traction and handling go hand-in-hand with air pressure, so pull out that air gauge. Too little or too much pressure can negatively affect performance.
Most people assume that the tire itself determines air pressure, and while this holds some truth, most air pressure is determined by the vehicle itself. Yes, the vehicle—tires can fit a variety of different vehicles, but the vehicle manufacturer knows exactly what type of tire pressure will draw out the greatest performance. The psi branded on a tire's sidewall indicates the tire's maximum cold inflation pressure, but that maximum pressure might not be what your individual vehicle needs for maximum performance. So, when using your air gauge, you should always check your vehicle manufacturer's air pressure recommendation found in your owner's manual. (Read more.)
See all air gauges available at Tire Rack.