From our question at Assumption University by 30 students. People who don’t know and don’t check the air of tire have 11 people. People know and check air have 19 people. To take care of the correct tyre. Check the tire pressure should be 1-2 times per month. Don't reduce tire pressure when tires are hot. It's normal to tire pressure will increase as the tire when the car ran hot for some time. The fill cap should be changed every time the car tire change. If you plan to travel far. You should check your tires before you leave to reduce road accidents. You can check the tire pressure at the gas pump.