Overview of Tire Quality Grading Standards
The Uniform Tire Quality Grading is a U.S. Government requirement. Their purpose is to provide drivers with consistent and reliable information regarding tire performance. Tire manufacturers are required to grade tires using three performance factors: tread wear 1, tire traction 2, and temperature resistance 3. Although not a Government of Canada requirement, all tires made for sale in North America have these grades branded on the sidewall.
The actual values for tires are vehiclespecific and may deviate from the values in the illustration.
Where applicable, the tire grading information can be found on the tire sidewall between the tread shoulder and maximum tire width.
For example:
All passenger car tires must conform to the statutory safety requirements in addition to these grades.
See also:
Cleaning the wheels
Do not use acidic wheel cleaning
products
to remove brake dust. This could damage
wheel bolts and brake components.
Do not park the vehicle for an
extended
period straight after cleaning ...
Activating DISTRONIC PLUS
Activation conditions
In order to activate DISTRONIC PLUS, the
following conditions must be fulfilled:
- the engine must be started. It may take up
to two minutes after pulling away before
DIS ...
Maximum permissible gross vehicle
weight rating
The specifications shown on the Tire and
Loading Information placard in the
illustration are examples. The maximum
permissible gross vehicle weight rating is
vehicle-specific and may differ f ...