Understanding Tire Sidewall Markings |
|
Speed Rating Table | ||||||||||||||||||||||||||||||
It's the indication of the maximum speed.
|
Load Index Table | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
It's the indication of the maximum load allowed for the tire.
|
mm
to Inch Conversion Chart |
||||
mm | Inches (approximate) | |||
Simple Conversion |
To
the nearest 1/32 inch |
Percentage | Watermark | |
2mm | 1/16 | 3/32 | ||
3mm | 1/8 | 4/32 | 40% | 4 |
4mm | 3/16 | 5/32 | 55% | 5 |
5mm | 3/16 | 6/32 | ||
6mm | 1/4 | 8/32 | 75% | 7 |
7mm | 1/4 | 9/32 | 95% | 9 |
8mm | 5/16 | 10/32 | ||
9mm | 3/8 | 11/32 |
Used Tire Maintenance |
Tire pressures, including the spare, should be checked at least once per month before driving, when the tires are cold (after the vehicle has been stopped for three hours or driven less than one mile). Do not reduce air pressure when tires are hot. Use professional tire gauge to check pressure and maintain it at the level recommended by the vehicle manufacturer. If a tire loses more than one pound of air pressure per month, have it checked for leakage by your dealer or professional tire shop. Proper inflation pressure is very important to tire durability tire life, comfortableness, and vehicle handling, therefore you should always maintain the correct inflation pressure in your used tires according to your vehicle manufacturer's recommendation. In addition, your vehicle has a Tire Information Placard, which indicates the proper tire size and inflation pressure for your particular model car. |
Tire Structure |
|
Important Driving Safety Tips |
Used Tire Air Pressure Measure tire pressure when the tire is cold, if needed inflate to the pressure specified by your car manufacture manual. You may also find pressure information on the side of the door of your vehicle. Used Tire Wear Caution Check point Note |