Use your smart phone to photograph your tread depth every 10,000 to 20,000 miles. Be sure to perform pressure checks whenever the season changes since heat causes expansion and cold causes contraction.
Consult your manufacturer's suggested PSI (pressure per square inch) as improperly inflated tires wear faster. Maintaining correct air pressure will lengthen tread life. Or you might like the look of bigger wheels, which not only necessitates different models but also may impact the setting of your suspension or change your aspect ratio. There are other product features to consider – such as run flat or high-performance. Consider replacing all-season pieces with winter tires during the snowy season, especially if you do not have all-wheel drive. There are acceptable substitutions that could perform as well or better than the OEM item. This is the OEM (original equipment manufacturer) part provided. For the most part, this is fine. Most drivers replace car tires and wheel with the same make, model and size that are already on the vehicle. There are other codes published on your sidewall that indicate the manufacturer, the usage designation (P is for passenger), the width in millimeters, the ratio of height to width, the rim diameter size, load index, speed rating, and temperature grade, among others. Units this old have considerably higher risk of the steel belt in the tread suddenly separating from the rest of the rubber. A tire’s age is printed on its sidewall. Look for the four-digit code after the DOT (Department of Transportation). The first two numbers represent the week manufactured and the last two digits represent the year. So, if your sidewall is imprinted with DOT A3TY PXH6 4816, the 4816 indicates the 48th week of 2016. Sidewalls imprinted with a three-digit code were made prior to 2000.
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