Uniform tire quality grading

DOT (Department Of Transportation) Quality Grades: All passenger car tires must conform to federal safety requirements in addition to these grades.

Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example:

Treadwear 200 Traction AA Temperature A

See also:

Engine block heater (if so equipped)
Engine block heaters are used to assist with cold temperature starting. The engine block heater should be used when the outside temperature is 208F (−78C) or lower. To use the engine blo ...

Changing a flat tire (models with spare tire)
Basic information If a tire on your Nissan Murano becomes flat, follow the instructions in this section carefully. Changing a wheel beside a road can be hazardous, so remain alert to surrounding ...

Engine block heater (if so equipped)
Engine block heaters are used to assist with cold temperature starting. The engine block heater should be used when the outside temperature is 20°F (-7°C) or lower. WARNING ● Do not use ...