It’s good to keep your tires properly inflated. It can improve your gas mileage. And it can reduce your risk of a blowout and other problems that can be caused by tires with low pressure. Experts suggest you check your tire pressure once a month. Not sure what your tire pressure should be? Check your owner’s manual. Once you know what your tire pressure should be, use a tire gauge to see what it is. Check the pressure in all 4 tires. If you’re low, add air to your tires to inflate them to the proper levels.