Temperature A, B and C

Temperature A, B and C - Uniform tire quality grading - Technical and consumer information - Infiniti QX Owners Manual - Infiniti QX

The temperature grades A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law.

The temperature grade for this tire is WARNING
The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, under-inflation, or excessive loading, either separately or in combination, can cause heat build-up and possible tire failure.

    See also:

    Styling & Quality
    I won't waste much virtual ink describing the M's styling revisions; they're better shown in the thumbnails at right. Suffice it to say the M looks much like it did before, though certain elements ...

    General maintenance
    General maintenance includes those items which should be checked during normal day-to-day operation. They are essential for proper vehicle operation. It is your responsibility to perform these procedu ...

    Headlights
    Replacing the xenon headlight bulb If replacement is required, see your INFINITI retailer. WARNING HIGH VOLTAGE When xenon headlights are on, they produce a high voltage. To prevent an electri ...