Like most people I know, I hate checking the air pressure in my tires. Believe it or not, to be safe on the road, you should be checking your tires about once a month. That’s because on average, tires lose about one pound of pressure every month and are potentially hazardous when under-inflated.
Without the right amount of air pressure in your tires, you have less control over handling and stopping the car. Another negative is that the tires wear out prematurely. By the way, your correct tire pressure is posted on your car door, in the owner’s manual or glove compartment. While you’ve got the air pressure gauge out, don’t forget to check your spare tire. The spare loses pressure at the same rate, as the tires on the wheels do, even when you’re not using it.