A tire with pressure below the appropriate level is likely to spread outward so the sidewall starts to come into contact with the ground. Of course, your tires are not created to run in this condition and the flexing of the soft tire as the wheel revolves generates heat which will really shorten tire life if not cause a sudden blow out. You could find it difficult to keep your car in a straight line after a blow out and in the shortage of a spare wheel, you will need to pay a tow charge. mud tires The standard readings for the proper tire pressures are normally measured from 'cold' or more strictly at the ambient temperature. Look for your tire pressures after your car has been standing for several hours over time of driving. This will give time for the tires to cool down and help you to take a more precise measurement. By using these simple tips you can turn out saving some funds. All tire pressure figures should be measured when the tire is 'cold' so either check your pressures first thing in a morning after the car has stood overnight or at least wait several hours after it has been used on a long journey. When driving the tires get quite warm after a while and air pressure readings will seem greater than they really are. It's good advice to check your tire pressures weekly and by doing this and heeding the details in this article you will keep yourself safe and save money.