Most automobile owners check the gas and oil in their cars regularly. However,they may forget to check something else that is just as important:the tires. About 28 of automobiles in the United have tires that are in poor condition. Some are too worn and others have too much or too little air. It is good idea to check the amount of air in your tires every week. You should also give a quick look at your tires every time you get into your car. This way,you may avoid a flat tire or a blow-out.