Keeping your car tires properly inflated is an easy maintenance chore that's vital to your safety. Under-inflated tires build up excess heat as you drive, which can result in tire failure. With too little air pressure, tires can also wear faster and unevenly, waste fuel, and negatively impact the vehicle's braking and handling. To help maintain tires in top condition, use a tire-pressure gauge to check the pressure of your tires at least once a month and before starting on any long trip. For an accurate read, make sure the car has been parked for three or more hours before checking the tire pressure.
Tire-pressure gauges are available at auto-parts stores, big-box stores, and other retailers, as well as online. We have found in our testing that good gauges for consumers typically cost $5 to $15. Keep the tire-pressure gauge in a protective sleeve, as cleanliness will ensure its longevity and accuracy. If a gauge is old, worn, or dirty, or it has been dropped, it may not be reliable and you should get a new one. For the nominal cost, it is a wise investment.
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