588
Uniform Tire Quality Grading Standards
or experience accelerated wear that will shorten vehicle life .
. Tires could fail .
. Tread separation could occur .
. Tire could separate from its rim .
& Steps for Determining Correct Load Limit s13ab08
1 . Locate the statement “ The combined weight of occupants and cargo should never exceed XXX kg or XXX lbs .” on your vehicle ’ s placard .
2 . Determine the combined weight of the driver and passengers that will be riding in your vehicle .
3 . Subtract the combined weight of the driver and passengers from XXX kg or XXX lbs .
4 . The resulting figure equals the available amount of cargo and luggage load capacity . For example , if the “ XXX ” amount equals 1,400 lbs ( 635 kg ) and there will be five 150 lbs ( 68 kg ) passengers in your vehicle , the amount of available cargo and luggage load capacity is 650 lbs ( 1,400 − 750 ( 5 6 150 ) = 650 lbs ).
5 . Determine the combined weight of luggage and cargo being loaded on the vehicle . That weight may not safely exceed the available cargo and luggage load capacity calculated in Step 4 .
6 . If your vehicle will be towing a trailer , load from your trailer will be transferred to your vehicle . Consult this manual to determine how this reduces the available cargo and luggage load capacity of your vehicle .
13-3 . Uniform Tire Quality Grading Standards s13ac
This information indicates the relative performance of passenger car tires in the area of treadwear , traction , and temperature resistance . This is to aid the consumer in making an informed choice in the purchase of tires .
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
The quality grades apply to new pneumatic tires for use on passenger cars . However , they do not apply to deep tread , winter type snow tires , space-saver or temporary use spare tires , tires with nominal rim diameters of 12 inches or less , or to some limited production tires .
All passenger car tires must con-