Infiniti QX: Uniform tire quality grading - Technical and consumer information - Infiniti QX Owner's ManualInfiniti QX: 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

Flat towing
Towing your vehicle with all four wheels on the ground is sometimes called flat towing. This method is sometimes used when towing a vehicle behind a recreational vehicle, such as a motor home. ...

Treadwear
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 wou ...

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Adding engine oil
Environmental note When adding oil, take care not to spill any. If oil enters the soil or waterways, it is harmful to the environment. WARNING   If engine oil comes into contact with ho ...

MOExtended tires (tires with run-flatproperties)
MOExtended tires (tires with run-flat properties) allow you to continue driving your vehicle even if one or more tires are entirely deflated. MOExtended tires may only be used in conjunction wi ...

Brake fluid level
If you notice that the brake fluid level in the brake fluid reservoir has fallen to the MIN mark or less, check the brake system immediately for leaks. Also check the thickness of the brake lini ...