Tips & Facts about Tire Pressure
- What is tire pressure?
Tire pressure is a measure of the amount of air in a vehicle’s tires, in pounds per square inch. The required service involves checking the tires’ pressure with a pressure gauge, at least monthly, if not more frequently. (CarTalk.com)
- What happens if your tire pressure is too high?
If tire pressure is too high, then less of the tire touches the ground. As a consequence, your car will bounce around on the road. And when your tires are bouncing instead of firmly planted on the road, traction suffers and so do your stopping distances. You’ll also feel a decrease in ride comfort. (CarTalk.com)
- What happens if your tire pressure is too low?
If tire pressure is too low, then too much of the tire’s surface area touches the ground, which increases friction between the road and the tire. As a result, not only will your tires wear prematurely, but they also could overheat. Overheating can lead to tread separation — and a nasty accident. (CarTalk.com)
Tire Pressure Tips
- To find the recommended PSI and other tire specifications for your car:
- Near the driver’s side door jamb for a sticker.
- The inside of the gas panel.
- Inside the glove box.
- Take the proper tire pressure for a car when the tires are “cold.”
- Tires have been idle for a few hours.
- Tires haven’t been in the sun.
- Measure off the temperature outside.
Tire Pressure Facts
- For every 6 PSI, a car’s tires are under-inflated, the vehicle can experience a loss of 304% in MPG (Miles Per Gallon).
- On a monthly average, a car’s tire loses between 1 and 2 pounds of air pressure. This average is higher in the winter and lowers in the summer.
- A car’s tire pressure changes approximately 1.5 PSI (Pounds per Square Inch) for every 18 degrees Fahrenheit (10 degrees Celsius) change.
- Low tire pressure also builds up the heat in the tire which decreases the lifespan of the tire.
- Don’t forget the spare tire! If you have a spare tire, make sure to check its tire pressure when you are checking the pressure of your other tires. A spare tire loses pressure even when not in and would not be of much help when you need to fix a flat tire.
- According to the NHTSA, approximately 20% of gas station tire inflation stations’ gauges are off by over 4 PSI. Only about 50% of these stations even have pressure gauges on site, so it is best advised to keep a tire gauge in your glove box. Check out the Stop & Go Programmable Digital Tire Gauge
- Myth: Deflating a tire in snowy weather will increase traction. In fact, doing this actually reduces traction and increases tire wear along with the probability of tire failure.